Upon receiving the news of his father's death, the main character, Kurata Seiichi, returns to his parents' home for the first time in several years. What awaited him there was his childhood friend, Touko, and a small "dog".

It was the last souvenir his father left him.

Seiichi is not fond of pets, but he cannot refuse Touko's request. They had no choice but to take in the dog....

[Translated from Fanza]