Takoda was given a magic sword to fend off a bunch of attacking demons before entering some kind of fantasy world where she is greeted by a giant ghostly woman. The ghostly woman asks for her help to defeat the demons. Takoda initially refused, but then the ghostly woman blasted her with energy, removing most of her clothing, leaving her in her diaper and a skimpy chestplate. Yes, this is based on an old Sega Megadrive game. I never played it, but I did watch a hilarious Let's Play for it done by the talented Kikoskia.