Summary
Kouichi, who is 6 years younger than him, became a brother-in-law after his sister’s marriage. The size is huge and the attitude is also huge. For some reason, I often come to the apartment where I live alone on the road to school. This cool nephew says he likes me more than anyone else, so how should I put it, for the time being, he’s my lover. During the summer vacation, I took a break and planned a trip alone…?
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