Han Shihu had one rule.

He had to be a righteous person.

Minimizing harm to others.
Contributing to society.
Risking his life to save others.

So, at least he kept the minimum line.

"I see now why the doctor used the drugs."

It must be incredibly convenient to control people.
Han Shihu began to understand why the doctor had been spreading the drugs everywhere.

Indeed, the drug is useful.
Though he's curious if it works on someone like the Saintess, who can cleanse herself.

He understands.
There's no need to trap or control anyone directly. …