One night and two days of 1 night and left alone by my wife's sister who suddenly came over

"Thank you so much, sister-in-law." "That's fine, you'll do anything to thank him, right?" Yuya makes his wife angry over a trivial matter and leaves the house. She promises to do anything to her sister-in-law Natsu for offering to arbitrate. As soon as he made the promise, Natsu approached, generously revealing his sensual, pure white nude body. Although Yuya, who is overcome by her lovely smile, knows that it's no good, she is unable to resist Natsu's temptation...