Max Toonager

The teacher I admired suddenly disappeared from the school. All that remains is a mysterious trunk and a letter entrusted for some reason.

"Search for the teacher."

With that determination in mind, Max rides the train Solaris across the world with the trunk in hand. The first trip beyond the border Tokyo as a destination. There she meets railroad sheriff Renancuff. After her encounter with him, she becomes embroiled in a battle that shakes the world.

(Source: Kodansha, translated)