[Machine Translation] The female unit of Eri Takahashi and Jurika Kato boasts of overwhelming sales at live street performances. Their songs are based on the "why? and "poop" of history that can be used in entrance exams, and sublimate the greatness of our predecessors into "excitement" so that you can learn history while having a blast at the live performance. This is the long-awaited first major single. The jacket of A version and B version are different.