"When adults exploit and corrupt children, there's only one thing left to do. Break that twisted world apart. With a punch." This is Kivotos, a colossal city where countless academies gather under one sky. Within it exists a special task force established by the president of the Federal Student Council. A young man works there as a teacher under the Federal Investigation Unit known as SCHALE. His name is Mash Burnedead. And just like every other day, he protects his students the only way he knows how - by punching out the bad adults. Mash is ridiculously strong, practically unstoppable, and he's planning to knock out a few members of Gematria while he's at it. The story takes place about a month before the main events of the Mashle series begin. Unlike the original version of the teacher, this Mash gets directly involved in his students' problems, no matter how messy they are. Some parts of the story will differ from the original, so please keep that in mind.

Tracen Academy is in shortage of trainers, thus they look further a field for new faces to help their Uma's debut, That's where you Come in Y/N L/N a Young track and field runner straight out of college, A determined kid with grit and a heart of gold.