Ace Of The Spars

This will be adapted into an anime in a much much later year, though, If you choose to read it, it is a script, but please don't call it a script, call it more of a "Script Story". Here's a basic summary

The main character, Koumari Seioto has it pretty rough. First he starting having anxiety and dizziness, then he started getting into fights with thugs on the streets, so it wasn't a surprise he'd get into another fight again one day. But, the way these 'thugs' fought were different. They went one by one instead of altogether like most of them.

After defeating all three, the leader said something strange: "Do you want to join our dojo to stop evil in the town?" Seioto was slightly dumbfounded, but after they explain the situation to him, he slowly agreed, and they go to the underground dojo. There, they state their plans: To stop crimes in the shadows, and to defeat the 'big boss' of the town, the undefeated champion in underground fighting tournaments: Brozer.

Looks like things are just gonna get crazier and crazier for Seioto.