All it takes is one look at that plain classmate's neck and he's losing it!! Will he be stuck in these indecent fantasies every day?! Shu Nanami, one of the most popular kids in his class, is head-over-heels in love with his unassuming classmate Yuishiro. In fact, he's so obsessed that every day he finds himself falling into the deepest, dirtiest fantasies he can imagine. Just when Shu decides he needs to put some distance between the two of them to avoid doing something he'll regret, they end up locked on the roof together during a sudden rainstorm. Trapped right next to him under a narrow awning, Shu can't help but push him down...! Looking down from above at Yukishiro's bright red blushing face, he can't even distinguish between reality and fantasy anymore! The passionate feelings that he's been holding back until now kick into overdrive!