Mitsuki Nagisa, a beautiful girl who is exploding in popularity, lifts the ban on the first black cock FUCK in her life! Mitsuki, the younger girlfriend who is the manager of the track and field club like me. We started dating and were in love. However, suddenly everything was destroyed by a black helper international student who came from the United States. He has a big body and fast legs! In a blink of an eye, I became a regular player and I was taken away from the starting lineup. Mitsuki, who encourages me when I'm depressed, isn't ... I wasn't doing that with him ...