What if a science girl and a boy who have a strong passion for research fall in love？ The story begins when Ayame Himuro, a talented post graduate student in science who studies in Saitama University, confesses to Shinya Yukimura, who studies in the same laboratory. As a science and engineering major, “If we can‘t prove love theoretically, you can’t say you love me, and we‘re disqualified as a science student!” This is romantic comedy that Ayame Himuro and Shinya Yukimura involves members of the university laboratory where unique science students gather and devotes themselves to proof experiments on the definition of "love" based on the belief. Can they really define love?