If I Kiss Him(2014)

Asakawa-kun to Kiss wo Suru Nara

Izumi likes two things: sweets and a boy in another class at his high school, Ibuki. Ibuki marches to the beat of his own drum, which Izumi admires. However, Izumi is approached by Ibuki's twin, Satsuki! His playboy vibe instantly turns Izumi off, but Satsuki is persistent! Flashforward, and Ibuki thinks Satsuki is dating Izumi... That's when it happens... Ibuki hisses, "I hate gays." Also included is a love story which centers around the two versatile young men, Rio and Etsu, from "Rule Number One".

(Source: Renta!)