Renjou no Hokorobi

Yuto and Iori are childhood friends who are always together, to the point where everyone treat them like a couple.
In fact, Yuto has always had a crush on Iori, but he is afraid to tell her for fear of ruining their friendship... One day, Iori tells Yuto that she has a new boyfriend, but Yuto gets jealous and pushes her away.