Chocolate Surprise

A game involving two guys, lots of girls, and lots of chocolates. And hidden amongst those chocolates is a single Garana chocolate. If any of the girls land the Garana, they get to have sex with the hottest guy in the class, Kakiuchi! If one of the guys get it, they get to pick anyone they want to have sex with. But what happens when one guy, Ogasawara, gets the lucky Garana and asks the other guy to have sex with him?!

(Source: Aurora Publishing)

Note: This is the original Japanese publication of the manga, the English edition by Aurora Publishing includes several chapters of the prequel "Aishichattano".