My "Prince" Became 3D - I, an Otaku, Am Living Together and Having a Real Romance with Him!?

Inexperienced in love, an otome-game fanatic, her ideal man is a game character! Kaoruko Tojo is a nerdy young woman without many redeeming qualities. She is set up on a blind date with the handsome Tokiori Tsukasa, who is like a three-dimensional version of her favorite in-game prince! Even though Tokiori refuses to accept her proposal, Kaoruko is determined to confess her feelings for him, and in a strange turn of events, they end up living together with the promise of marriage! As their relationship gradually changes, he wonders if Kaoruko likes him for who he really is? It's a relationship full of twist and turns, the exciting life together of an otaku girlfriend and a tsundere "prince." (Source: Tull Kiss Bunko, translated)