Yuri from a wolf in tiger's clothing (no his build is totally unlike a sheep lmao) to a golden retriever pup that is so starving for even the slightes attention and affection from Seonwoo lol can't help it I guess, since he was born and raised without getting proper affection from his parents. I think in some degree, that was what happened to Yohan as well, which is why he's very clingy to Mookyung, though thanks to Yohan's older brother parental figure, he wasn't as twisted as Yuri