I regressed and became the weakest summoned of a genius summoner. Now, I will protect her from the one who killed us.

Raniel, the promising wizard and the prospective owner of the most renowned magic tower in the kingdom, gives up his title and leaves to join a heroes’ party led by Kyle, the warrior. Along with the other members, Raniel sets out on adventures to slay the Demon Lord—the evil being who trampled his village long ago. He spends four years defeating the dark forces and grinding half of his life to save his team, only to find out that his effort has been in vain. Kyle suddenly kicks Raniel out of the party one day, claiming that their goals are different. Devastated after getting betrayed by his team, Raniel decides to return to the tower, but things grow worse when he runs into a succubus queen on his way back, gets cursed, and realizes… he has turned into a girl?!

I used to think that my stealing skill only worked on what was worthless to a person. But just before I died, I realized that I could also steal the skills. So I stole the regression.

A certain middle-aged man, Saito Kenji installed a mysterious smartphone app “Guide to Creating Another World”. It was a game in which you could freely manipulate planets, lives, tribes, eras, and all sorts of other things. However, as a result of being transferred to the world on the screen through a new function, he found himself able to travel back and forth to Japan! You can explore and time travel in other world, and the different abilities you get can be used either way, and use dimensional storage. And you can take things and people with you as much as you want…! “Hmm, this is an adventure you have to have, isn’t it?” I’m busy resolving problems in two worlds, and leveling up in between. Occasionally, he gives an oracle to cause the other world to shake violently, or tames a nine-tailed girl with tuna mayo–? The life of an Ex-salaryman with an “anything goes” God life START!