Royal Tutor in Yokohama

As a royal teacher, Heine traveled through time to a world he didn't know. This world was a very developed world, completely different from his own. Heine adapted to this world at an extremely fast speed. One day, he was summoned by the leader of the port gang and asked to be the tutor of Chuuya Hara and Osamu Dazai. Heine agreed, and the story began. Heine-sensei is really cute, and the little one is even lower than Chuuya. (Feeling like I'm about to be beaten)●ｽv● Intention: Study hard and make progress every day