[Amuai Okashi Seisakusho (Moegi Oji-san, Namamugi)] Reality-Synch Gacha How I got Turned Into The Waifu of a Gloomy Nerd [SachiKing]

A gloomy, glasses-wearing otaku discovers his new gacha game syncs reality with his phone screen—and anyone turned into the game's busty blonde knight, Fil-chan, feels everything done to her on-screen body. When the app closes, his male classmate snaps back into his own skin, only to be transformed again whenever the nerd feels like getting some. Now trapped between begging like a proper waifu or staying pent up, Fil-chan's massive tits and lecherous pussy become the ultimate prize in this reality-bending power play.