The very 1st thing to do is to leave this achievement for last. For now I only recommend that you finish the game upgrading everything, in order to cover the rest of the achievements and for another thing necessary in the next topic.

Here you'll create another profile which will follow some rules. Why create another profile? simple: after you've dealt with game, the girls will be a bit unlocked, instead trying to battle each new girl and facing the message you need to finish previous chapter (remember i told the girls will be a bit unlocked? that's because they won't be unlocked at all... you can still battle the next neighbor on chapter).

Why all this? u'll be playing a weaker version of yourself, only dependable on combos and believe me my friend, u'll be defeated... a lot.

here i'll show your aim on build in order to be able to hunt it. The 1st thing is to buy the 3 sacred itens, the item conversors, which will help you defeat girls/ farm higher money to invest on build:

---

PS: You don't need to buy the passive itens yet for now. I bought the fever passive item when fighting the 4th girl, just fyi.
PS2: I was aiming to get the passive recovery item as well the passive enemy lesser nerf itens, but the achievement came 1st, so lucky me :)

You'll start farm the battles with the girls, and always remember that following the story, each girl have what i consider 4 lvls meaning the progression on their story (25% -> 50% - > 75% - >100%)
When I told about new game+ is just for you to consider beating the next girl lvl 1 instead trying your luck to the extreme to actual girl lvl 3, for example.

Pay attention for what you should invest between the fights in the picture below.

---

By all means, you're not allowed to invest on physical and magic attacks. Remember you're gonna win the fights via combo, not raw demonstration of power/strength. With that said, start investing 1st on fever. When you get fever max, start to invest on HP, recovery and energy preferable equally between them. The reason for this is to turn you into Wolverine from X-men, but with little damage. Huge cure/regen factor to counter heavy attacks from the girls while making your way through combos.

PS: i started invest on turn, but i stopped after checking this lvl 3 only gave me 1 or 2 extra turns, so i think is is better to gather huge amount of money and invest on half on it immediately for some impact on gameplay.

When meeting all required objectives above, its time to start the hunt for the achievement.
you'll be looking for the formation where a random icon is surrounded by 4 identical icons on both sides on horizontal lane or upside and down on vertical lane. The picture below shows the perfect condition to form this gem from any direction you can choose, checking that big cross of swords and the central fever potion on south of board.

---

Train your eye to find the pattern on the board scanning the icons line by line and then column by column. If you get to a conclusion there is no pattern avaiable, you can still use the item conversor or hunt down fever potions. Do not use all conversors in a chain action. Only do this to win immediately a battle or turn your chance to win 80%. That's not the case here. Just try to access more patterns in order to get more gems. So only use it if you can see that icon should be replaced with the one you want to attach to pattern and get the gem and that's not fully guaranteed to work, because even conversor saying it converts all X items into Y items, it converts some of them (Hello devs? is that a bug?).

The other way is filling fever potions to reach fever status for 13~14s. What is fever status? it is a special condition where you can make any movements of matching blocks and the turn stays stopped, so consider it a time stasis bubble with 13 or 14 seconds of duration. Your mission here is after checking there is no pattern to hunt on board, then turn into a devil and release all hell on the board, shuffling the world. For this be a kinda rat / mole and aim for the 3 bottom lines of the board. match as fast as you can 3 icons horizontally or vertically, giving priority to horizontal matches to make 3 columns to bring new items and when fever is over, check again for hunted pattern on board.
With fever max on store, you can easily chain 2 or 3 fevers, getting a total of 28~37 seconds of shuffling.

Your priority on matching will be fever > recovery > physical/magical attack if there is no pattern to lock your eyes into it.

I hope with all those tips, you can get at least 47% chance to get that bastard achievement, like i did.

---

That's all.
Thanks folks!