So the pale haired dude is actually in love with the protagonist. I could welp not excuse but understand the cheating plot if we got some kind of resolution like them both coming clean and breaking it off with their respective partners but I guess it is just an oneshot.
Hey it's good but i don like how the Uke casually saying "you're good for nothing kaga-san" like are you for real? Saying that to someone who likes you? Did you really see him like that? YOU'RE TRASH IF YOU SEE HIM LIKE THAT