Chiaki Ichihara is the princely heartthrob all the girls crush on, but she's got a not-so-charming secret: a serious boob fetish! Chiaki is so obsessed with breasts, she can hardly function without copping a feel. To satiate this need (and keep her classmates from finding out), she has enlisted Hana Harumi, whose perfectly sized and shaped bust may just be everything Chiaki's ever wanted...Will their odd partnership bloom into a bosom bond like no other?
When Arisa loses her memories from the past three years, her girlfriend, Mari, worries it might mean the end of their budding relationship. A needless concern, it turns out, because when Arisa lays eyes on her, she falls in love all over again! Arisa's not about to let a little severe brain damage get her down, because she has a chance to relive all their firsts for a second time-from dates, to kisses, and even beyond...!!