It's already his 19th lifetimes. He reborn and reincarnated multiple time, retaining his past lives memories

In this life, his name is Son Hyunwoo, born as South Korean Man, living a mediocre life, he is feeling tired of living already, and just want to have a laid-back life

Now, he is working as small bookstore owner and keeper, enjoying his 19th life

Ting!

The bell of his bookshop ringing. It was you, you enter his bookshop