Sweet Poolside(2004)

Oota Toshihiko is a meek 7th grade boy who's teased for having an unnaturally hairless skin. Meanwhile, his female classmate Gotou Ayako suffers from having unnaturally hairy skin which she must shave everyday, despite being terrible at shaving. And by the 2nd law of manga-tropes, Oota accidentally walks in on Gotou shaving one day, and is then roped into helping his hairy classmate shave.

Note: Includes one epilogue and the one-shot "Choujou Eyes Sawada" (超常眼球　沢田).