Tino, a young man living a laid-back life alone in the outskirts of a rural village, was spending his day like any other. That evening, he suddenly remembered it was his birthday. When he checked his status, the two characters for 'Immortal' caught his eye.

※Book publication has been decided by Shueisha's Dash X Bunko.

※The book version has been expanded and revised.

※Also available on AlphaPolis and Tsugikuru with external links.