Released from his duties guarding the frontier, Richard, a middle-aged warrior, has returned to his hometown and is currently job hunting.

He's begun living with his much younger sister, Stella, who graduated from the senior division of a prestigious Magic Academy, but something seems off about her.

Contrary to her beautiful appearance and intelligence, his sister, who possessed a rough personality from growing up in the downtown area and should have detested Richard—who was far too much of an old man to be called her brother—has become remarkably docile and clingy.

It's no wonder! Apparently, Geraldine, a Duchess's daughter, has borrowed his sister's body and is enjoying a brief "vacation" before her marriage!?

If he can earn the Duchess's favor, a position in the Holy City is not just a dream.

With such ulterior motives in mind, Richard begins to look after Geraldine, accompanied by his familiar, Bell.

※This is strictly job hunting. Absolutely not a sister complex.

☆Character profiles and a glossary have been added to the beginning. Please enjoy them as tidbits of information.☆