A student of the Faculty of Science and Engineering of the University of Engineering and Medicine, Ri Kakada (Otaki Nozomi). He has been an energetic and scientific boy from a young age. He is a weird man Keda who only concentrates on things he is interested in. After entering university, he doesn\’t care about love and so on. In order to seek a scientific understanding of anything, I am not good at the phenomenon that the theory of love cannot be established. In this way, he fell in love with his sister Iijima (Baba Fumiga) in the student cafeteria. Iijima used a fire extinguisher to extinguish the tofu in the cafeteria, and her majestic appearance caught Keda\’s heart. Can Kakada\’s love succeed? After repeated experiments and verifications, Keda started a unique love effort!