Koyon

Gray Tanaki was an average anime fan until he found himself reincarnated in a Dragon Ball RPG! The difficulty is... nightmare? How can an average man survive when his enemies are smarter, stronger, and canon has gone out the window? By being a badass, of course! Train until your bones break, take over the universe, become a god, and make the harem of your dreams! (Gamer!SI)

An average man is reincarnated in the world of DxD! How do you survive in a world of battle-hungry monsters? With a cheat skill, of course! Devour the competition, becoming stronger with every fight! From the depths of the Familiar Forest, the Beast King will rise. (Harem, Gamer!SI)

"You have been chosen for the [Game of Dungeons: DxD Edition!]" When a bimbo Goddess summons you to a dungeon sandwiched between the supernatural world of High School DxD and the deadly Monster Realm, what's a normal guy supposed to do? Well, becoming a Dungeon Master, scamming the Goddess into being your servant, and using every loophole in the system to profit would be a nice start.

When Naruto Uzumaki woke up in a new world with a gamer system that always rolled a 20, he thought getting a bowl of ramen would be easy. He thought wrong. How did he become the God of an entire species and get a harem before he found a good ramen stand? A lot of misunderstandings. (Naruto x Multi (big harem), Gamer! Naruto)

100 Floors? Try 1,000. 10,000 players trapped in a death game? Try 10,000,000. Do you think you’ll be freed in a few years? Maybe in a few decades. A game that should be unbeatable - the impossible ‘Sword Art Online.’ Well, it would be impossible, if not for a certain psychopath. The ‘World’s Greatest Gamer’ will have you all out in no time! (Harem) (Crossover Characters)