Because my sister-in-law, who had run away from home, came to stay with me without permission, I, a newlywed, was forced to abstain from sex for a month. (Fujimori Riho JUL-420)

I couldn't stand my uncle's womanizing anymore, so my wife's older sister, Riho, left home and came to stay with us temporarily. Although my uncle helps with living expenses, Riho makes my wife feel ashamed at home, and she's forbidden from having sex with me. As a newlywed, I can only endure it…