[Wild child Tetsuya takes on the challenge of a famous cram school!?] Tetsuya Katagiri is a mischievous sixth grade boy who moved from the countryside of Kansai to Tokyo. However, the area he is in is home to people who are incredibly enthusiastic about education! His mother has been influenced by his move, and he is forced to take the test for the Tokyo University cram school. Tetsuya is fully prepared to fail, but he is inspired by the words of the slightly cheeky and brilliant beauty Minami Yui, and comes up with a brilliant idea to win the test...!!