As a country boy, I had to stay at my brother's place to attend a cram school in Tokyo. But... my brother suddenly went on a business trip, leaving me alone with my sister-in-law Tsubasa. My sister-in-law treats me the same way she did when we were kids, and she's too unguarded... It was too stimulating for a virgin like me...
1,000 yen worth of free points for first-time users!
