The creatures encountered along the way could all have muscles, blood vessels, and the likes harvested to extract the measure word "Za".
Following the thought train inspired by the character settings of the supernatural world, Yu Liang stumbled upon an aspect he hadn't noticed before.
"匚".
The meaning of this radical could be a measure word, symbolizing "one dou (about a gallon)", which Yu Liang could take advantage of.
Hence, in conjunction with arrows, he could obtain the therapeutic "医", and a probably redundant "汇" character that could be placed in the bodyguards' character bank.
With this, ten character banks would be largely occupied by less significant characters, demonstrating the annoyance that lies in the occupation of a bodyguard.
Being able to block three slots when attacking a human and double damage on monsters, while possessing top-notch core protection ability, it's indeed a top-tier body cultivator.