Des：Kazuya, a son-in-law who lives with his wife and her parents, has quit his job and is unemployed due to excessive stress from work. Kazuyas harsh words from his father-in-law pierce Kazuya... However, in contrast, his mother-in-law, Rui, embraces Kazuya with a Buddha-like tenderness. Kazuya helps out with the housework during the day, but what catches his eye is Haruis huge breasts! Kazuya quickly regains the vitality and energy he had lost and develops a twisted desire for Ruis big breasts...