Updated for Slagathor's Route

Here are some things to note before you get started!

• I am not a dev, and these are not perfect answers. If you want perfect - you'll have to buy the guide and support them. But for the intents and purposes of getting achievements and endings, this guide will work. Please don't comment saying something is wrong - That's kind of the point.
  
• There are 4 love interests, each with 3 different endings (Faeryn has 4) and therefore 3 achievements each (Faeryn=4). There are missable achievements within Imbriss' and Faeryn's routes, and a threaded achievement that needs you to play the game in a certain order.
  
• For this purpose, I strongly recommend you play this game following the order they appear in the guide. But you do you. You just might have to repeat a couple. There is the "solution" to this in the achievements section of the guide.
  
• I also strongly recommend you play with sprite animation turned OFF for now if you do not have a "good" computer (ie, you can only really play VNs and Stardew Valley). As cool as the animation is and how much it brings life to the characters, it is a very heavy load on your PC, and borderline unplayable when 4 appear on screen at once. Not to worry, you'll still see the different sprites.
  
• You can save on choices or mouse-wheel back to repeat them. Standard otome, but worth knowing this one also gives you that freedom so you don't have to save like a paranoid maniac.
  
• Some men's CGs are hidden in other routes. For example, Faeryn's route has one of Imbriss' CGs, and you cannot "max their gallery out" without wooing other men. Don't panic if you are following this guide and have missing CGs. The walkthroughs are long-winded on purpose, so you can do exactly what I do and ensure you get them.

Faeryn has 10 CGs and the "most" out of the 4 men. This Ending will get you Faeryn CGs: 1, 2, 3, 5 and 9.

• Look away
  
• Lead the way.
  
• It's okay... This time, I was only joking. That was a bad joke.
  
• It's not a good time, couldn't it wait?
  
• Could you call Faeryn?
  
• Nod attentively
  
• I love it.
  
• Faeryn, I'm scared...
  
• I love books too
  
• Throw it out the window
  
• Ignore it

Note: This next choice opens the main route.

• Gentle light to soothe my pain
  
• Let it go.
  
• That was awesome! Like a real adventure
  
• You can't make decisions for me. Please give me back my pain.
  
• My parents...
  
• Cool. Let's make it grow then!
  
• It's already perfect because you live here
  
• Don't worry. No matter what you feel, I'll accept it.
  
• Garlic, Ketchup, and Mayo - Unlocks achievement "Peculiar Taste"
  
• Refuse - Note: accepting and getting the joint Imbriss/Faeryn CG will not impact the ending if you wish to see it. It is not offered in another ending.
  
• Accept him

This ending will not receive a walkthrough. It is exactly the same as "Love Cage", only you reject him at the very end instead of accepting him.

Note: This is a good "ending" to accept Imbriss' invitation to a three-way - which is a missing/joint CG for both Faeryn and Imbriss.

Faeryn has 10 CGs and the "most" out of the 4 men. This route will get you Faeryn CG 8.

• Look away
  
• Lead the way.
  
• ...
  
• It's not a good time, couldn't it wait?
  
• Could you call Faeryn for me?
  
• Man, this is going to be long, isn't it?
  
• Yeah, it's decent, but maybe don't lose it over a couple of trees.
  
• Leave him alone! You're not welcome here.
  
• I only read when it's useful
  
• Throw it out the window
  
• Ignore it

Note: This next choice opens the main route.

• Gentle light to soothe my pain
  
• Press him for an answer.
  
• This sucks. I want to go home..
  
• This is some twisted ♥♥♥♥.
  
• But I don't know you.
  
• Sounds boring, I'm out
  
• Relax, it's just a tree house.
  
• This is creepy as ♥♥♥♥.
  
• Garlic, Ketchup, and Mayo - Unlocks achievement "Peculiar Taste"

This route will give you the remaining CGs for Faeryn: 2, 4, 6 and 10.

• Look away
  
• Lead the way.
  
• It's okay... This time, I was only joking. That was a bad joke.
  
• It's not a good time, couldn't it wait?
  
• Could you call Faeryn?
  
• Um, could you maybe... shorten it for me? Just a little bit.
  
• To be honest, I'm not used to nature. I don't go out much.
  
• Faeryn, I'm scared...
  
• I miss the times I read more
  
• Throw it out the window
  
• Ignore it

Note: This next choice opens the main route.

• Gentle light to soothe my pain
  
• Press him for an answer.
  
• The hell, Faeryn? You lied to me.
  
• Wow... I admire your strength and devotion, Faeryn.
  
• If you can't bring my grandpa, go away
  
• I don't think we should mess with Hikmat's plant
  
• It doesn't have to be perfect
  
• I'm not gonna lie, it'll probably take me a while to get used to that.
  
• Garlic, Ketchup, and Mayo - Unlocks achievement "Peculiar Taste"

Imbriss has 9 CGs, this route will gain you the first 4 and the 5th, the 7th, and all 4 of Allen's CGs.

• Look into his eyes
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• I'll just go alone.
  
• That will save us time, I'm in.
  
• Then I guess I'll die.
  
• Throw it out the window
  
• Go check it out

Note: This next choice opens Imbriss' main route.

• Scorching fire to burn it all away
  
• You heard him, Faeryn. Imbriss can handle everything, so go away
  
• Ah, what the hell! Let's do it!
  
• Maybe you have a point... Fine, let's get this over with.
  
• Wow, seriously? Are you turning into Faeryn?
  
• I don't want to get involved in your way of ruling. You decide what we do.
  
• You're clearly not interested in ruling
  
• Are you scared?
  
• What happened to "Don't be a ♥♥♥♥♥"? Are you going soft on me, dragon?
  
• Try to learn something - Unlocks the Achievement "Dedicated"

• Look into his eyes
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• I'll just go alone.
  
• W-wait, P-please, don't.
  
• W-wait, please! Didn't you want me to ride a dragon?
  
• Throw it out the window
  
• Go check it out

Note: This next choice opens the main route.

• Scorching fire to burn it all away
  
• Then I guess I'll ♥♥♥♥ off. Faeryn, do your thing.
  
• I won't do it. If you want me to fuel your spell, teach me how to control my magic
  
• I'm not gonna learn anything by jumping away from your fire breath. Back off, Imbriss.
  
• I need to run!
  
• Y-you could've really hurt me!
  
• How can you be so heartless? We should help them.
  
• Is it? Well, I'm not gonna argue with you.
  
• Uh, I just thought it would be... nice.
  
• I'm really scared... I bet it'll hurt!
  
• Try to learn something - Unlocks the Achievement "Dedicated"

Imbriss has 9 CGs. This route unlocked the same CGs as the Master ending, but also the 6th, and 8th CGs.

• Look into his eyes
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• I'll just go alone.
  
• What are you doing? Stop immediately!
  
• Don't underestimate me, I could be helpful.
  
• Throw it out the window
  
• Go check it out

Note: This next choice opens the main route.

• Scorching fire to burn it all away
  
• The hell, Imbriss? I thought you wanted to save me. There's no shame in accepting help when you need it.
  
• I won't do it. If you want me to fuel your spell, teach me how to control my magic
  
• I'm not gonna learn anything by jumping away from your fire breath. Back off, Imbriss.
  
• I need to stop it! - Note: This will give you a crash/error. It's the typical otome kind. Click ignore and you can proceed.
  
• There's no shame in saying you're sorry. I really appreciate it.
  
• How can you be so heartless? We should help them.
  
• You don't even know what to do with it. You could use it to improve your people's lives.
  
• I need this to connect with you more.
  
• Thank you for giving me a choice.
  
• Try to learn something - Unlocks the Achievement "Dedicated"
  
• Go away - Important note: You miss a conversation with Faeryn that counts towards the Achievement "Deja Vu" here, but only if you tell him to go away. I've told him to go away in the guide because it just felt like the more personality-correct thing to do in this run, but either choice does not matter. Let him in if you are following this guide in order for the "Deja Vu" achievement.

Hikmat has 9 CGs. This Ending will unlock the first 8.

• Look away
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• I'm wondering about Hikmat...
  
• I don't think humans are that simple.
  
• So... does it wind ALL through you?
  
• Go after Hikmat
  
• Wait and see what's going to happen
  
• Uh, thanks. It's pretty. Smells good, too.
  
• Ignore it

Note - The next question locks you into the main route.

• Ancient wisdom and purpose to guide me.
  
• Do you even care about how I feel?
  
• I want to spend time with you. Simple as that.
  
• No, but it was a ♥♥♥♥♥♥ thing to do.
  
• I'm sorry. I should've asked. But I needed to wind down a little.
  
• It's kinda a bad place for a date, you know?
  
• It was a beautiful memory. You must've loved him very much.
  
• Trust goes both ways, Hikmat. If I'm supposed to trust you, you need to trust me too. At least let me watch.
  
• I'll stay close. I just think you've done a good job with it.
  
• Momo, stop. If he wants to tell me, he will.
  
• -Exhaust all 3 of the options, in any order-
  
• I'm glad you're my familiar.
  
• Is there a reason you picked this one? Do you like it?
  

• Look away
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• I'm wondering about Hikmat...
  
• Changing the subject...
  
• That's horrible! You shouldn't mess with things like that.
  
• Go after Hikmat
  
• Wait and see what's going to happen
  
• Uh, thanks. It's pretty. Smells good, too.
  
• Ignore it

Note - The next question locks you into the main route.

• Ancient wisdom and purpose to guide me.
  
• I'm not going to die, am I?
  
• Nevermind, forget it. I'll just kill time until you come back.
  
• Yes! I would've never agreed to this bad trip.
  
• This is stupid. Maybe I should just go back to my room...
  
• This is disgusting. I want to go back!
  
• This is depressing.
  
• What am I supposed to do, then?
  
• Um... If I get lost, you'll save me, right?
  
• Wait and see what happens.
  
• -Exhaust all 3 of the options, in any order-
  
• This is all so depressing
  
• Sounds pretty.
  

This route gives you the 9th and last CG for Hikmat.

• Look away
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• I'm wondering about Hikmat...
  
• I think nature will have it's revenge on us real soon.
  
• Fascinating. What chemical does it use?
  
• Go after Hikmat
  
• Wait and see what's going to happen
  
• Uh, thanks. It's pretty. Smells good, too.
  
• Ignore it

Note - The next question locks you into the main route.

• Where do you find magic-eating soil?
  
• I want you to tell me more about magic and wizards. It will be more efficient than reading a book.
  
• No, but by not telling me, you could've ruined the whole experiment.
  
• You're someone who plans for everything. Don't you have something I can drink to get rid of the alcohol?
  
• Can you draw magic from the dead?
  
• Did you break up, or...
  
• Can't this be a learning opportunity?
  
• What's natural is usually more beautiful than what's built anyway.
  
• Hikmat, let him talk. I want to know what's going on.
  
• -Exhaust all 3 of the options, in any order-
  
• If you ever reconnect to the Afterlife, can you take me there?
  
• Does it have any uses?
  

Momo has 8 CGs. This ending will get you all but the 7th CG.

• Look away
  
• Actually, can you just give me directions? I will find my own way, thank you.
  
• Give me a second, I'm coming.
  
• Continue Eating
  
• I'd rather go with Momo
  
• I like it
  
• Um, well... no, not really. I'll wear it.
  
• That was freaking terrifying. But being with you made me feel safer.
  
• Momo! I'm so glad you're here.
  
• Throw it out the window
  
• Ignore it

Note - The next choice locks you into the main route.

• Softness and laughter to lure me to safety.
  
• You seem to know everyone here pretty well.
  
• That seems too cruel for a prank
  
• Can't we at least be friendly?
  
• No! I'm not giving you anything!
  
• You look... different.
  
• *Brace*
  
• Are you okay, though?
  
• ... Please, Momo?
  
• I was just worried about you
  
• Maybe we should sleep together
  
• I guess that's fair
  
• I need to follow and check on him
  
• Momo... what was your relationship with my grandpa?
  
• See if the fox will sleep in the barn instead
  
• Step in to help him
  
• Reassure him Grandpa did care about him

• Look away
  
• Actually, can you just give me directions? I will find my own way, thank you.
  
• Give me a second, I'm coming.
  
• Continue eating
  
• I'd rather go with Momo
  
• I think you looked better with more abs.
  
• I'm not a cross-dresser!
  
• I need to sit down. I think I'm going to puke.
  
• Momo! I'm so glad you're here
  
• Throw it out the window
  
• Ignore it

Note - The next choice locks you into the main route.

• Softness and laughter to lure me to safety.
  
• ... it... does sound pretty funny.
  
• Let's just stick to the library
  
• Can't we at least be friendly?
  
• Look, I'll give you the journal, but not my blood..
  
• Maybe we should stop.
  
• Uh, okay?
  
• So long as we're still training...
  
• ... Please, Momo?
  
• I don't want to fight with you
  
• Are you going to sleep, too?
  
• It's still polite
  
• I need to follow and check on him.
  
• I didn't realise what I was doing, really.
  
• Knock on the door to the house.
  
• Pick him up and get him out of the way
  
• Reenact how it went before.

This Ending gives you the final missing CG for Momo.

• Look away
  
• Actually, can you just give me directions? I will find my own way, thank you.
  
• Give me a second, I'm coming..
  
• Stare at Momo in horror
  
• I'd rather go with Momo
  
• I think you looked better with more... abs
  
• I am not a cross-dresser! (ew, Allen)
  
• I need to sit down. I think I'm going to puke.
  
• The heck, Momo? What was that supposed to be?
  
• Throw it out the window
  
• Ignore it

Note - The next choice locks you into the main route.

• Softness and laughter to lure me to safety.
  
• Eh, nothing. Who's next?
  
• ...What do you want me to say?
  
• Are you always this mean when you're upset?
  
• Ugh, fine. But only a little.
  
• That wasn't fun, Momo.
  
• Wait, no. Explain first.
  
• So long as we're still training...
  
• Make me.
  
• Which of us are you trying to convince?
  
• Do you always make it this difficult to get to know you?
  
• I won't always.
  
• I have to follow him, and give him a piece of my mind.
  
• Momo, you're changing the subject again.
  
• Try to break into the empty house.
  
• Pick him up and get him out of the way
  
• Tell him I care about him, even if Grandpa didn't

Slagathor has 9 CGs, this route will gain you the first seven CGs and the last CG and "true route" for Allen's gallery.

• Look away
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• Can't I just stay in here?.
  
• Well, what do you usually do?
  
• Throw it out the window.
  
• Ignore it

Note: This next choice opens Slagathor's main route.

• Strength to keep me sane.
  
• I almost hurt you.
  
• ... Empty.
  
• I want to help people.
  
• I don't believe it.
  
• Wait for Slagathor.
  
• I trust you. Let's use the runes.

This route unlocks the 8th CG in Slagathor's gallery.

• Look away
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• Can't I just stay in here?.
  
• How long is 'a good while', exactly?
  
• Throw it out the window.
  
• Ignore it

Note: This next choice opens Slagathor's main route.

• Strength to keep me sane.
  
• I almost died.
  
• Kind of strange, I guess.
  
• I want to make people happy.
  
• I'm not sure.
  
• Just do whatever they ask.
  
• Tell me how the runes work, first.

This route unlocks the 9th CG in Slagathor's gallery.

• Look away
  
• Actually, can you just give me directions? I will find my way, thank you.
  
• It's not a good time, couldn't it wait?
  
• Can't I just stay in here?.
  
• Could I just stick with you?
  
• Throw it out the window.
  
• Ignore it

Note: This next choice opens Slagathor's main route.

• Strength to keep me sane.
  
• It's not like I want to have magic.
  
• Pretty much the same as before I came here.
  
• I don't want to be a burden.
  
• I believe it.
  
• Insist on going in.
  
• Are you really worried about me?

Imbriss exclusive achievements:

• Ending: Dragon's Pet.
  
• Ending: Masters of the World
  
• Ending: The Healer and His Dragon.
  
• Missable: Dedicated

Faeryn exclusive achievements:

• Ending: Horse Boy
  
• Ending: And They Lived
  
• Ending: Love Cage
  
• Ending: Rinse and Repeat
  
• Missable: Peculiar Taste

Momo exclusive achievements:

• Ending: The Fox and the Mage
  
• Ending: A Pet Fox
  
• Ending: Wild at Heart

Hikmat exclusive achievements:

• Ending: Without a Trace
  
• Ending: You and Me in This Moment
  
• Ending: Into the Void

Slagathor exclusive achievements:

• Ending: Buddies For Life
  
• Ending: No Longer Feeling It
  
• Ending: Monster Orc

Missable Singular Achievement "Deja Vu":

If you have done my guide out of order, you're most likely missing this achievement.

You need to do Faeryn's routes before Imbriss' and Hikmat's routes, and Hikmat before Momo's route. (Faeryn -> Imbriss + Hikmat -> Momo)

You can continue Momo and Hikmat's routes as per usual when you do them, but you must let Faeryn come into the room when he knocks during Imbriss' "The Healer and His Dragon" route to gain the Deja Vu dialogue found there. You are likely missing this particular piece of Deja Vu dialogue because most of us will have wanted to ♥♥♥♥ the dragon first, and chosen Faeryn as a second or third route.

Disclaimer: You're welcome to do them in any order you wish to, of course. It's just you'll end up having to repeat some playthroughs. Which is honestly fine because the skipping feature is fast. This is just the "optimal" way.

UPDATE FOR SLAGATHOR'S ROUTE:
This is essentially the "true" romance/ending, as it tells you what definitively happened with your grandfather in a way the other routes do not. It is recommended you play this one last, if you care about getting the full story.