VENU-972 Suddenly, my wife's sister barged in and kept me on edge for a one-night, two-day stay

My wife went on a trip, and Naoya finally had some time to himself. Suddenly, his sister-in-law Neinei showed up. 'I thought you might be struggling alone, so I came to help.' The two of them worked together to clean the room, but Naoya was unable to hide his bewilderment as Neinei insistently showed him her cleavage and underwear. Furthermore, he ended up taking a bath with her due to her persistence. Then, she washed every inch of his body…