Masataka and his wife, Misuzu, are a married couple who get along well.
Masataka loves cosplay and wants to have sex with Misuzu while she's dressed up in all kinds of different clothes, but he's reluctant to ask her about it.
One day, he suggests having sex with Misuzu in cosplay using a suggestion device given to him by a colleague at work.
Misuzu is skeptical, but she agrees to help her beloved husband overcome his weakness for sex...

[Edited from Steam]