It was my mother's best friend, Eriko, who brought my muddy mother home. Takeshi can't help but worry about Eriko, who is more beautiful and mellow than he heard from her story. Although she is beautiful, she has fallen in love with a woman of her mother's age. He can't take his eyes off the unrequited love of a married man. Eriko, who notices Takeshi's passionate gaze in her, approaches him with the intention of teasing her, but she is gradually influenced by Takeshi's earnest thoughts.
