Daisuke Aoki (voiced by Junji Majima) is an ordinary man with a simple personality and a bit of aversion to women. As a teacher, he currently teaches in an elementary school. For some reason, such an ordinary person was actually favored by the famous problem child in the class, Kunjue Rin (voiced by Eri Kitamura). With her unrestrained and hot-tempered personality, she immediately decided that she would not marry Teacher Aoki in this life. In order to pursue Aoki, Rin designed many battle plans, but with the "help" of her two friends Kagamiguro (voiced by Kei Shindo) and Usa Mimi (voiced by Mai Kadowaki), these battles all ended in failure. Not only that, in school, there was also a powerful rival in love, Kyoko Hoin (voiced by Ryoko Tanaka), and Rin felt like he was facing a great enemy. During the fight, Aoki, who had been very troubled by Rin, gradually began to care about Rin's every move. Can these two people with such a big gap finally get together?