
Yes, please support the author ahaha this story is really good and entertaining~ I hope they publish it in ebook format since this manhwa becomes popular. It's rare for korean novels to get translated unlike chinese ones, but I'm sure someone will. I'm surprised by how many people like this so quickly before the story has even started properly~

No, we didn't know it in the books for a reason. Because it was kept a secret since it was how Jay recognized him, though he himself has forgotten he has a tattoo there.
((Spoiler)) He got it because he thought it was something people did to get popular or smth...but after he got it, he realized it was only something girls did and for *that* reason, that it looks sexy when you fuck them from the back. Though he didn't care for it afterwards and even forgot he had it, until much much later when Jay points it out that that's he recognized him since that's the only thing he remembers when he slightly opened his eyes and saw his back before he left him with 200 won. The only 2 things he knows about him is his rabbit costume, his tattoo on lower back...and the 200 won thingy.
I don't think the artist should have revealed it because it is done so much better in the books...it happens when they're sleeping in the same bed for the first time since that time years ago. And Jay checks it and confirms it for the first time. The flashback would have been better then...ugh it's bothering me a lot!!! But whatever. It's the artist and authors decision I guess.
Ah, I'm kinda pissed they revealed his tattoo so early on ughHhh
The tattoo is revealed later on when Jay sees it and recognizes him...ugh.
In any case, "nutjob" haha I'm so used to him being called Toraii haha it becomes a pet name for him (yohan saves his name on his phone as psycho fyi - which later his manager and friend thinks it's a crazy girl who is after him hahahaha)
I can't wait for what's coming~~~~