I'm a Villain in My Own Game?

Genre: Fantasy, Action, Adventure, Romance Word Count: 1500-5000 words per chapter [Arc 1 - Survival Test ~ 52 Chapters] [Arc 2 - Academy Tournament ~ 27 Chapters] [Arc 3 - The Chosen Saintess ~ 37 Chapters] [Arc 4 - Aragonian—Venetian Wars ~ 55 Chapters] [Arc 5 - Corrupted Tree of Elven Forest ~ ???] A game developer suddenly enters his own game world, taking on the body of an antagonist? After realizing the suffering of humans caused by the scenarios he and his team created, the protagonist vows to try to prevent and minimize casualties from the disasters they caused in that world.