I Wanna Fuck My Mom's Best Friend (2020)

Naoki has long harbored feelings for Shiori, his mother’s best friend, who helped raise him. Now an adult, his view of her has shifted from maternal to romantic and sexual. When his mother leaves for a work trip and asks Shiori to stay with him, the boundaries between familial familiarity and romantic tension begin to blur. Naoki wonders if his feelings may finally be reciprocated.