"Today...is yesterday?"
Sakuta may have cured Mai's Adolescence Syndrome in the nick of time,
but now he faces a no-less-harrowing task: convincing her to officially
date him. After managing to win that round of verbal fencing, he gets
some well-deserved rest...only to wake up "yesterday," with all his
progress reset. This inexplicable phenomenon seems to be caused by Tomoe
Koga--the self-righteous yet self-conscious schoolgirl who offered up
her own butt to be kicked after mistakenly assaulting Sakuta's--and the
only cure is to...pretend to be her boyfriend?!