Yuuya Tenjou was fifteen years old and bullied since he was little—just for being ugly. But one day, he found a door to another world. Traveling between an alternate reality and the real world, Yuya turns his life around!

Yuuya Tenjou was proposed to by a princess and invited to a castle in another world, but back in the real world, his new life at Ousei Academy is only just beginning. Watching him dominate in studies, sports, and everything else as if he has cheats turned on, his classmates' eyes start to fill with blazing envy!

After opening a door to another world, Yuuya Tenjou finds the ultimate cheat and gets a second shot at life in his own reality as a flawlessly high-school boy! As he crosses between worlds, Yuuya's cheat skill only grows more and more powerful!