Naisho no Wakana-san
Japanese title: ナイショの若菜さん
Type: OVA
Episodes: 1
Source: Original
Genres: Hentai
Producers: ChiChinoya
Duration: 18 min
Rating: Rx - Hentai

Wakana, a friend of the family, an older Sister onee-san archetype, attends a funeral with her much older husband of 15 years. That night, she has a liaison with the son of the family who is a younger man studying for his college entrance exams.