See also: Junjou Romantica 2 (Season 2)

Misaki finds himself unexpectedly romanced by his entrance exam tutor, but his tutor, Usami, is an older man and his big brother's best friend! In addition to being a tutor, Usami writes steamy shounen ai novels. Usami also appears to be trying to recapture his childhood, decorating his room with giant teddy bears and toys. All of this is confusing enough to Misaki, but one day he takes a peek at one of Usami's books. Inside he sees sentences like "Misaki licks every inch of Usami's hot body." Will Misaki's life ever be normal again?