MM Ep 7 - Female AP

Episode 7 A Midsummer's Love Triangle?
Genius green-haired magical-shoujo Noa Hiiragi's preteen high-school body is often mistaken for a grade-schooler's. She drinks a potion she invented in an attempt to seduce masochistic male protagonist Taro Sado, and grows into a voluptuous adult figure, filling out her previously oversized Office Lady fetish outfit to near bursting.