AngelBitch！～淫乱ドスケベ痴ロリと僕のセックス三昧生活～（Angel Bitch! ~Inran Dosukebe Chiloli to Boku no Sex Zanmai Seikatsu~）

Yuna plays the innocent young girl, but in reality she is a sex craved nymphomaniac who seduces geeks.

Protagonist Saitou Eiji is one of these geeks.