This shit needs another season.
Drill Hair. FUCK YEAH!
Season 4 is in the making.
Well it's already been confirmed
next season is about yumi selecting either drill hair or stalker and her petite soule graduating.
I doubt season 4 will get as far as Sachiko's graduation, considering that still hasn't happened quite yet in the novels and there's still 10+ novels to cover.
The second-year fall/winter is Marimite's equivalent of being on Namek, really.
MARIMITEI RIMITEI RIMITEI