Flawed-Level Blade Law

Sterl transformed into an old man clad in a conical hat and a raincoat, day after day, year after year, immersed in the study of sword techniques and blade arts. 

He had no secret techniques or powerful skills, just the most basic moves: 

Chop. 

Slash. 

Pierce. 

Stab. 

Sculpt. 

Sometimes he would practice for years without any progress. 

Other times, he would gain enlightenment in the morning and master a skill by sunset… 

Until these final techniques became creations akin to rules. 

The old man, one day, ascended from being a mortal to a demigod! 

Sterl's true self suddenly opened his eyes! In his vision was that of an old man wielding various weapons. 

The old man, who had practiced swordsmanship for an unknown length of time, had his raincoat shatter dramatically. 

His face was none other than that of Sterl, the owner of the store. 

Blade Law had been accomplished!