Mother's best friend

"I decided to get married," Mayu is the best friend of his mother, whom he had loved since childhood. Her sudden declaration of marriage made her son Satoru uneasy. He tries to drink his last night of singles and acts cheerfully, but his heart doesn't clear up. But don't marry me! There's no way I could say that... Then Mayu, who had drunk her mother, approached. "I'm going to become a married woman from tomorrow... so... I want to make some good memories with Satoru at the end." Satoru is confused when Mayu boldly pushes her big breasts against her...