A man approached a college girl on the street, asking her if she would like to participate in international exchange through sports. If they could beat a black guy with a gigantic penis, there would be a reward of 100 million yen! However, if they lost, they had to play a game of baseball boxing where both teams take turns cumming inside each other. Despite being confused by their opponent's unusual habit of stripping down during the match, the college girl enthusiastically agreed. Unfortunately, due to her lack of experience and the overwhelming size of the black man's cock, she was defeated easily. Now, she finds herself getting fucked non-stop and filled with cum for the first time in her life!