ROE-163 Aunt's wet transparent body, a rainy week alone under the same roof, Yuka Mizuno

Left at his aunt's country house while his parents are on a trip, the ronin student tries to focus on studying and ignore his feelings for Yuka, who has always been beautiful. One day it starts raining, and as they take in the laundry, her wet, see-through underwear catches his eye. The release is from 2023 and runs 139 minutes.