Haru-chan is a beauty with a personality that does not suit her, she has always loved Takashi-kun, and was planning to make it to 3rd base with him. However, Hiro shows up blocking her plan to success and takes her first time. Yet, Haru never knew that Hiro is Takashi's younger brother. Things start to get complicated and Haru begin to notice that she is in love with someone else! Who will she choose? Takashi or Hiro?