Akira has reached the age where he is interested in the female body. I can't help but be curious about her mother's big breasts. Even though she is just doing housework, her non-standard breasts are bouncing around. Even though her wits are not doing anything, her crotch suddenly becomes erect. It's abnormal for him to have lust for his girlfriend's mother. Akira finally wonders if she's gone crazy, she laments, but her obsession with her Wisdom Breasts...