Honest Higurashi (Higura Shimasana, commonly known as Masa) is a former Yankee who has a legend of winning fights against 100 opponents, but now he runs a small izakaya "Paisen" near the sea. With a big cut on his face is feared by the general public as a yakuza, but he is actually a kind-hearted young man who is gentle with wild animals and plants. One day, he meets Kanakana, a girl who runs away from a suspicious man. Kanakana has a mysterious power that can read people's hearts, and she was made to use that power in a gambling house by her uncle Sawada who knew it.