A memory-wiped and defective cyborg sex slave is tossed onto the streets and taken in by a homeless woman while his corporate creators hunt him down.

Jinta of Tonegawa, commonly known as Banana Boy. He is a "self-proclaimed artist" who dresses as a woman and performs striptease acts. Accompanied by his attendant "Furuchin," who calls Jinta his teacher and respects him as an older brother. Jinta is a futen boy who travels north, south, east, and west to show off his skills and live a carefree life. However, Jinta, who has a bad taste in men, attacks boy boys wherever he goes, earning him a bad reputation from the promoter, and now he is unable to hear from anyone and is out of money. Kaede, the healthy younger sister, is deeply in love with Jinta, but is worried deep down...