This experience points aren't really high, considering it doesn't quite match the status of a Grandmaster Peak strongman, but it's clearly much more than an average Master Level.
Qin Fang has killed many along the way, and he wiped out quite a few ninjas from the Iga School, but the only one who could yield a decent amount of experience points was this Grandmaster Peak old man from Japan.
As for others…
Qin Fang did encounter a few Grandmaster-level experts, but they were hunting him down at the time, and Qin Fang didn't get a chance to fight back, let alone kill them.
On the Master Level, Qin Fang did kill several, but those experts against Qin Fang were instantly killed, and the experience points were immediately gained.
All in all, only by killing this old man could the experience points reach this level...
Why much less?
