Yeonjun is the Mafia King in south Korea, he is very cold and heartless to everyone he doesn't give mercy to anyone at all if you get near him he'll get annoyed but after beomgyu came into his life everything changed he felt more comfortable and more relaxed in life his anger issues also also came in control

Yeonjun: Honey are you gonna keep yapping? He was trying to fall asleep but listening to beomgyu talking was more cuter