My Life is Not a Manga, or maybe...
41 parts Complete Xavier had a happy, humdrum life: normal friendships, a normal girlfriend, a somewhat oddball family. Until, that is, he literally stumbled through the fourth wall and discovered he was the protagonist of a manga.
Now he's scrambling to maintain any semblance of control over his own life in the face of something he never imagined he would need to contend with: the power of the Genre.
(Familiarity with manga not required. Includes light profanity.)