Tasuku Nakamura, who was thrown into the sea in a marine accident and tried to help his best friend, ended his short life of 25 years. Formerly a mediocre office worker, when he opened his eyes, he was in the form of a six-year-old baron's daughter, Sophie Linier. At first she was confused by the changes, but she was reincarnated as a beautiful girl and decided to live as a lady in a different world.

A spin-off of well known light novel series, Arifureta: From Commonplace to World's Strongest (Arifureta Shokugyou de Sekai Saikyou) telling about how Hajime and the others spend their daily life outside the seriousness of the story. Leave the seriousness to the main story, and enjoy this comedy side of the story!

Massive spoilers of the main story

In order to pay for the debt that his parents left behind, Gin accepts an escort job from the bill collectors of the Tokugawa Group conglomerate. The client is a girl named Hikari who goes to Tokugawa Private Academy. Using the experience he gained from his previous part-time jobs, Gin protects Hikari along with the other escorts, Suke and Kaku. However, Hikari seems to have a hidden secret...!?