Katakura Yui, 40 years old, her hobby was to save money from a young age. She did a cancer screening because it was free, and found out she had fairly advanced uterine cancer. The doctor recommended that she get surgery as early as possible, but Yui was relieved somewhere, "With this, I can finally die."

Though it was her hobby, there was no longer any need for to live her life with the sole thought of how to save money. It was fine for her to live as she wished!

A man with pink hair, who definitely seemed to be a host, later appeared in front of Yui and struck up a conversation. "Um, I apologize for asking this out of the blue, Miss, but do you have money?"

From this day on, a strange relationship between Yui and this pink-haired guy begins.