Class No.1 beauty Fuyuki was a couple that matched her handsome boyfriend. One day, she was asked by her boyfriend to go out with a boy in her class that she didn't like for just one week, and she agreed. Although Fuyuki reluctantly started dating, she couldn't refuse the increasingly lewd demands every day, and eventually, she was inserted with a bigger penis than her boyfriend and came uncontrollably. After experiencing the pleasure once, she herself began to seek the penis, and repeated convulsions and orgasms.
