I, a former hero who returned from another world, was living idle, jobless days. Then one day, the world changed completely. Monsters flooded the streets and everyday life swiftly collapsed. Gigantic trees grew, mysterious buildings appeared, and Earth transformed into another world. In this transformed world, living out my humble, quiet days while grilling kusaya with a beer in hand, I happened to save twin high school girls who were being chased by monsters. I, a super handsome and caring guy, decided to look for a new place to live—no, I decided to travel with them to find their father.

This is a fantasy story about the Lv90 strongest tamer, who is average in all other respects, as he adventures at his own pace and rises through the ranks in a real world that is transforming into another world.

※Irregular updates.