
I kinda curious what thw percentage really mean... like is there something hidden about it ?

In Part One (the current part, before the timer runs out with the Heroine's introduction), Penelope only has to worry about getting the relationship values to 100% with one person and "winning" the game.
After the Heroine comes into play, there are a few more complications: the relationship values now have colors (varying depending on the type of feelings the capture targets have towards Penelope--and not all colors are good), and then later the relationship values are hidden and Penelope needs to spend money or reputation to view them. Really amps up the difficulty level.

Seriously why everyone is hating Taejoo. If im in his position i would be confuse as hell !!
When taejoo is trying to forget, move one, and fall in love with new person Yoon cameback. It's all just timing so im not blaming Taejoo when he react like a jerk to Yoon, he is trying to focus on his relationship now with his new Bf.
I bet if Taejoo breakup his new bf to be with Yoon all of the people will say that he's a jerk to leave someone that always beside him when he is depressed. So whatever he do he would be the one to blame. I kinda pity him ┗( T﹏T )┛

I pity him too. And the fact that he's trying his best in the new relationship caus he thinks he r*ped the other dude so he wants to take responsibility by doing his best in loving him.
He knows he still has feelings for Yoon but he's pretending he doesnt cause he knows it would send off his current bf (who tbh is toxic just cause he is taking advantage of Taejoo's sympathy instead of being truthful and building a healthy relationship from there... he's manipulative, not intentionally per say, but he is). We all know that if Taejoo didnt get drunk that night he spent with him and misunderstood what had happened he might have been actually able to move on from Yoon instead of forcing himself to. But since he's forcing himself, he hasnt truly moved on completely and now we're stuck in the angst loop.

I don't blame him cause he breaks up with MC, I blame him for how he just throws the MC away and was so insulting and disgusting to someone that just woke up from a FUCKING coma! he never even consider how sick and suffer the MC was and just kept being an asshole every time they meet! so no, I have zero care for the asshole! he could have breakup with him in more human-respectful way and not blame the guy for being in a fucking COMA!!
So goood but after reading the spoiler i really wish there would be many side story about them as a couple and rosen will finaly settle down with ian in the island after some years
hm you can read the novel for an alternative universe where ian helps rosan to run away from that hag (tho i didnt finish reading the side stories yet but i think you will like it)