So this is just completely my theory I think the baby in the beginning is the top because of the yellow eyes the gray dude is his roommate/friend. They don’t really tell us what’s wrong with him but from what the doctor said a couple chapters in I’m guessing he was marked by someone since this roommate is also an omega, but either he ran away from this so-called mate or escaped him or something and that’s why he’s low-key as the doctor says becoming undone. I think what he has for the main character is just an obsession/him going crazy I do think the main character sees him as a little brother, but I think the gray guy wants a relationship or something from him because he’s obviously a little bit possessive over him and he straight up jacking it to him, but these are all just my theories I could be wrong.
Am I the only one confused on who the fuck gray dude is? I legit thought that was the baby shown in the beginning which would make him mc baby brother? But he’s jacking it to his brother?? Kinda lost…like I could def see it being some weird incest shit but I’m really hoping it’s not （￣へ￣）