Synopsis
A man's younger sister confesses to him. He responds in kind, however, the only time they can have sex is when the sounds of rain drown out her moans. (Source: MU)
FAQ
Rain: Kokuhaku shitekita no wa Imouto datta has 1 volumes.
Rain: Kokuhaku shitekita no wa Imouto datta is currently finished.
Rain: Kokuhaku shitekita no wa Imouto datta was written by Jyura.
Rain: Kokuhaku shitekita no wa Imouto datta was published Dec 30, 2019.