For a complete 100% Steam Achievements, you will need to purchase both the "恋爱关系/Romance - 夏季花火" & "恋爱关系/Romance - Final" DLCs.

Since the "恋爱关系/Romance - Patch" DLC is free, get that too.

For a speedrun walkthrough, you can skip texts. Use the [CTRL] key to skip dialogues. If you would like to read the story instead, you don't need to use it.

Chapter 1

✧ Press [CTRL] to skip texts.
✧ When the mini game comes, just aim the hammer on the hand as it appears and click.
✧ During the H-Scene, choose - Shoot in the body

Chapter 2

✧ Press [CTRL] to skip texts.

Chapter 3

✧ Press [CTRL] to skip texts.
✧ When the mini game comes, arrange the photos in the correct positions. You will need to do this for four different photos.

Chapter 4

✧ Press [CTRL] to skip texts.
✧ When the mini game comes, you have to chop various food. However, make sure you click fast, accidentally cutting your finger, which is a requirement for the Ouch! achievement. You only need to do this once.
✧ During the H-Scene, choose - Shoot in the body

Chapter 5, 6 & 7

✧ Press [CTRL] to skip texts.
✧ For those who played this before the Final DLC was released (25 June 2022), I hope you have saved the game at around Chapter 7. If not, just load the save file at the very latest chapter that you have and move on to Part 3 of the guide. For the rest of you who have bought the complete game after, just move on to Part 3.

For Part 2, you need to click on the hanging sign on the top left corner of the Main Menu, as shown on the screenshot below:

✧ Click [Start]

Chapter 1

✧ Press [CTRL] to skip texts.
✧ When you are given a choice between Blue or Pink, save the game - SAVE 1.

✧ Choose Blue
✧ During the H-Scene, choose any choice you like.

Chapter 2

✧ Press [CTRL] to skip texts.
✧ During the H-Scene, choose any choice you like.

Chapter 3

✧ Press [CTRL] to skip texts.
✧ When you are given a choice between Shirt or Rabbit Girl, save the game - SAVE 2.

✧ Choose Shirt
✧ During the H-Scene, choose any choice you like.

To Get The Remaining Steam Achievements

✧ Load SAVE 2
✧ Choose Rabbit Girl
✧ Once you see the Who would say no to a bunny? achievement pop, move on to next step below.

✧ Load SAVE 1
✧ Choose Pink
✧ Play on moving towards Chapter 2 and once you see the I want them all achievement pop during the firework scene, you can end the game.

Part 3 of this guide is a continuation from Part 1, and will cover Chapter 8 to Chapter 13.

ALL Chapters

✧ Press [CTRL] to skip texts.
✧ Whenever you are given a choice between Watch or Skip, choose Watch.
✧ During the H-Scene, choose any choice you like.

Chapter 9

✧ When you are given a choice between Shinta-Chika or Nana-Hiroshu, save the game - SAVE 3

✧ Choose Shinta-Chika
✧ Once you see the Be Frank achievement pop, load SAVE 3.
✧ Now, choose Nana-Hiroshu and keep moving on to Chapter 12.

Chapter 12

✧ When you are given a choice between You will definitely be healthy or We shall not forget you, save the game - SAVE 4

✧ Choose You will definitely be healthy
✧ Move on to the end of the game.

✧ From the title screen, load SAVE 4.
✧ Now, choose We shall not forget you and move on to the end of the game.

✧ You should have the complete 100% Steam Achievements for 恋爱关系/Romance! Congrats!