"Because Wisteria Flowers are inherently meant to restrain demons. They are completely opposed.
So, there is fundamentally nothing that can let demons overcome Wisteria Flower poison without suffering.
The only way is to force yourself to adapt through pain, like how some illnesses make you immune after you get them once.
And all I can do is reduce the number of times you need to adapt and the pain involved.
Most of that medicine is concentrated Wisteria Flower extract, but I added ingredients with anesthetic and healing effects.
That way, it can lessen the pain somewhat. And compared to the long-term repeated doses needed before, this only requires two doses, with the second being far less painful than the first."
In truth, Tamayo was the ruthless one. She had tested the medicine directly on herself, and she had already done so three times.
As Tamayo recovered, Muzan was once again able to read her thoughts and memories.
He could see that Tamayo had suffered far more than he had.
And honestly, this pain was still less severe than the pain demons felt when he gave them blood. It was roughly comparable to eating a few Wisteria Flowers.
Thinking further, as Tamayo had said, this was something he had to go through if he wanted to overcome Wisteria Flowers, and he accepted it.
At that moment, Tamayo took out the second vial and silently looked at Muzan. Her meaning was obvious.
Muzan: Hiss—
Taking a deep breath, Muzan kept hypnotizing himself.
Better a short pain than a long one. He had already endured the first ordeal; not drinking it would be a waste.
He had to drink it sooner or later. Might as well get it over with early.
Come on!
Bottoms up!
He snatched the "concentrated Wisteria Flower extract" Tamayo