[FGAN-131] Eternal Bulma Daughter: I want to protect Bulma, who is disappearing from this world

Whole story using school sales bloomers! At that time, the real bloomers were actually used in physical education classes. Now that the bloomers that were sold for such classes have become difficult to obtain, it is necessary to preserve the bloomers in order not to erase the memory of the few remaining bloomers for school sales. - Wear it to plump body girls and slender body girls and record erotic poses, masturbation, and bloomers-wearing SEX that would have been secretly done at that time.