He's extremely possessive of the MC. And doesn't like to share his attention. He's the same with Banther. He hates both the variant and the kid because the MC likes them and splits his attention between the 3 of them instead of having all his focus on Gun xD he's just an attention hoe who doesn't like to share lol
i find him sus too. isn't yoomin actually 14 y/o? despite his looks and his actions, he's no small child and clearly into hyung already, i can definitely see him wanting to do hyung too as soon as he has seen them going at it, like the dude in the cave, and i can really live w/o that lol the typical trope would be that he will try to snitch on gun or get them to separate bc he's jealous after he finds out ahole gun is with his angel hyung
+ gun became obsessed at an even younger age with his hyung, hyung treats the boy basically like he treated gun as a child, so yeah he sees him as a threat bc they are clearly all weirdos lmao

Ok can Gun chill tf out about the kid?? What does he think, that he’s his love rival or smth?? Weirdo…