Chikan to nozoki: Neesan no shinshitsu (1991) is a film that follows yumiko, a classmate of Tadashi who just married his brother, lives under the same roof without knowing Tadashi's feelings, and they have a fierce nighttime affair. Of course, Tadashi is aroused by the two of them, and he doesn't understand either. One day, her husband, her brother, finds a letter addressed to Yumiko from a woman who adores her husband... Chikan to nozoki: Neesan no shinshitsu is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 2.0 out of 10 from 1 votes.