LOOKING FOR THIS MANGA

I saw someone post this on FB and maaaaaaaan, I loved the angst. Sadly, the poster couldn't remember the title, only the plot.

There's this naive uke and this bad boy gangster who's obviously the leader of a pack. So, anyways, these two belong to an all-boys school. The uke didn't have any friends because he looked intimidating but in reality, he doesn't even know stuff like sexa and jerking off, super innocent. So the seme took interest in him and made him his "pet" (but not that bad tbh). He thought the uke vices like smoking, drinking, porn, cutting classes to find clubs, etc.

Anyways, the uke wasn't aware that he was already falling in love, However, unbeknownst to him, seme had already fallen in love first a long time ago. But he had a weak resolve, he started thinking about how society would react to their relationship [being gay and a gangster at that too] so he started avoiding the uke. But the uke was also super persistent so he always confronted the seme until the seme snapped. He said some hurtful words like how he only became close to the uke because of pity, etc. So the uke became a lone wolf once again.

After that, the uke became lonely,he went to school late, doesn't eat his lunch-always sleeping during this time, and he's always wearing long sleeves. No one knew that he was being abused by the rival gang of seme. He always brought the uke so his rivals recognized his face. Since they couldn't take their revenge directly to the gang leader (seme), they took it on the uke and they even went harder when they realized that he had no back up coming to save him.

After that, the mother of the uke called seme, looking for him because he's been missing for 2 days. Uke had already introduced seme as his very first friend to his mother before. Seme searched places until he found this abandoned warehouse, the uke full of bruises and blood, unconscious. He had internal hemmorhage, broken backbones and arms, as well as other diagnosis. The uke fell into coma.

The uke also had this tragic backstory before when he was a kid. He was adopted. His current mother was a nurse from the hospital and he was in a coma before too for 2 years. This was when he was 2 years old. Since no relatives came to visit, his life support was supposed to be cut off so the nurse didn't want that and adopted him. He apparently has a brain related illness that's why he's a bit slow in the uptake.

That's all they can remember. Also, they said something about having Gomen in the title. I tried looking here in mangago but I couldn't find it. Please help.