Slum Online

Etsuro Sakagami is a college freshmen who feels uncomfortable in reality, but when he logs onto the combat MMO Versus Town, he assumes the personality of "Tetsuo," a karate champ on his way towards becoming the most powerful martial artist around. While his relationship with new classmate Fumiko goes nowhere, he spends his days and nights online in search of the invincible fighter Slasher Jack. Floating in between real and virutal, at last, Etsuro finds himself face to face with his most powerful opponent...

(Source: Publisher Haika Soru's Description)