Toriyama Yukina enters a university of science after prepping for one year for her entrance exam. At first, she is shocked by the atmosphere at her school. She becomes attracted to senior student Kei. Due to Kei, Yukina joins the “human powered flight” club. The club targets the "Tori Ningen Contest." Yukina wants to partner with Kei to fly in the sky, but she is partnered with Sakaba whom she does not like.