yui ikawa, my younger brother's beautiful nanny.

Koichi, whose mother was a milk blower, had been interested only in women with large breasts since ancient times, and he watched his younger brother Yoshiyuki marry a thin yui. One day, Yoshiyuki accidentally peeks at the miserable masturbation he had left in his lonely body on a business trip. Koichi was not a masturbation, but he looked out for the sensitivity of Yui's beautiful milk. The next day, when Yoshiyuki returned from his business trip and saw the couple fast asleep, Koichi dived into Yui's futon.