Trong khi vợ đi vắng, chị dâu đến để chăm sóc mọi thứ... Saya Yoshise

My wife has been hospitalized, and her older sister has come to help with the housework. The two of them, who are close in age and feel a sense of kinship, gradually become attracted to each other, and it was only a matter of time before they progressed to physical contact