Furyou ni Hamerarete Jusei Suru Kyonyuu Okaa-san The Animation

Kyoko is a single mom who lives in a modest neighborhood and raises her son. She tries to provide him with everything he was deprived of after his father's departure.

Sometimes, like everyone else, Kyoko wants to take a break from everyday worries and have fun. She loves watching her son, even though he is smart and understands everything that is going on around him. He tries not to show his thoughts, which sometimes visit him, because his mother has an attractive appearance, and her charming breasts attract the gazes of men.

One day, Kyoko gets a young admirer who brings partying and alcohol into her life. She starts spending time with him, and at some point forgets about her son. The son looks at it from the side, feeling both envy and sadness. He would also like to give his mother what she so desires, but missed this opportunity.