Nanako is a supergirl. She befriends Idabashi, an otaku aspiring to be a mangaka, and Yotsuya, a money-obsessed genius. She possesses the ability to fly, has super strength, and is extremely shy. The narrative follows Nanako as she faces various dangerous missions and mysterious events; however, her naturally cheerful demeanor helps her navigate every incident as she resolves each mystery in succession. A grotesque and hilarious gag manga that achieved cult classic status in the '80s.