That happened a long time ago. At that time, Borshu had just abandoned the name that marked his genetic information and had chosen a pleasing word from the internet as his new name.
His master was also a loner, who had never started a sect. Perhaps it was because establishing a sect required an overwhelming amount of resources.
Reactor, Restoring Enzyme production line, and most importantly, a hidden base. These things combined constituted the foundation of a "sect".
But Borshu had always believed his master to be a grandmaster of Martial Studies.
He was very fast.
Even Borshu, who had a minor achievement in Martial Arts, sometimes couldn't see his master's moves clearly.
And in their sparring, Borshu never managed to land a hit on his master. Often, his master's hand would "strike later but arrive first" and intercept his attacks.
