VENU-833 Suddenly, my wife's sister barged in and kept me on edge for a whole night and day

Kenta was really troubled. The cause was his sister-in-law, Rena's strange behavior. It's good that he came to help with the housework while his wife was pregnant and went home. However, there are too many mysterious actions after that. He said that he would wash his back and entered the bathroom naked. (No way, are you really inviting him?... No, that's not true) Kenta concludes that he's just making fun of Rena's mysterious behavior. With his frustrated feelings, he enters the futon... Rena comes there...