Original title: 爆乳人妻戦士ピュア・メイデン ～現役復帰した美少女戦士の熟れムチボディをチン負けさせて寝取り孕ませオナホハーレム化!～
10 years ago the Pure Maidens defeated the evil organization Nega-Force! After 10 years of peace, the Nega-Force is back. After a sinister corporate rebranding, they are now known as the "Neo Nega-Force". Now the world is once again in need of the Pure Maidens!
During those peaceful times, the Pure Maidens settled down, got married, and grew up into mature beauties. When they re-emerge to face off against the Neo Nega-Force, they are now full-blown magical MILFs!
That's where our protagonist, Ryohei, comes in! He is a normal citizen, with normal lustful desires about his not-so-normal neighbor Ayumi. During a tussle with the Neo Nega-Force, Ryohei catches Ayumi transform into Pure Sapphire! He uses this to blackmail her into indulging in his dirty fantasies with the Magical MILF!
Will Ryohei be able to achieve the same with the other members of the Pure Maidens?