Reincarnated as Urban Protagonist's BF: NTR'D Is My Job

A young man reincarnated as the protagonist's best friend in Chinese urban, with the code name "fatty." A Chinese urban novel with a protagonist has 20 heroines, but fatty, a side character, has none other than the scars he received while protecting the protagonist. A young man who was a reader and hated "fatty's" ending made the decision to alter fatty's course on his own. This is how he deceived and led the main character into a story of dishonesty and never-ending hopelessness.