[Reducing Mosaic]MRSS-188 In the village of Inshūmura, I couldn't get my precious wife pregnant and could only silently watch as she was made to receive internal ejaculations until she became pregnant.

Two childhood friends, Shiori and Masaru, who had lived in a small village, got married. However, there was an old custom in that village: if no children were born within half a year, sexual intercourse would be performed by the inseminator. Seeing Shiori being fucked by someone else right in front of him, Masaru despaired. One side of the bookmark, because sex with the breeder is too good, keeps going to him on her own...