I Got a Cheat Skill in Another World and Became Unrivaled in The Real World, Too

I Got a Cheat Skill in Another World and Became Unrivaled in The Real World, Too is a 2023 fantasy action anime with 13 episodes. It was made by TMS Entertainment and Millepensee, and it is based on the light novel series by Miku. It moves between modern Japan and a fantasy world called Argena.

Yuya Tenjo is a teenage boy who has been bullied all his life. He is shy and overweight, and his family left him on his own. Nothing in his life seems to go right. When his grandfather dies, Yuya is given his grandfather's old house to live in.

Inside the house, Yuya finds a strange door. It leads to Argena, a world of magic and monsters. There, he finds items and skills that his grandfather left behind. Yuya starts to level up like in a game. As he grows stronger in Argena, his body in the real world changes too. He becomes tall and handsome, and much stronger than normal people.

With his new life, Yuya transfers to a new high school in Japan. At school, people who used to ignore him now notice him. In Argena, he saves Lexia, a princess who is being attacked. He also gains a loyal dog companion named Night.

Yuya stays kind and humble, even as he becomes more powerful. The show follows him as he goes back and forth between both worlds, making friends and dealing with new enemies in each one.