This discovery made her both delighted and somewhat disappointed.
She was delighted that the Onmyoji would no longer face a dead-end future, now having hope to supplement the Yin Yang technique. The disappointment was due to a monster witch understanding the Yin Yang techniques better than the Onmyoji; it was truly ironic.
Miss Great Onmyoji scrutinized the seemingly weak but actually terrifying Demon King, curious about this person's background.
When the other party threw the teacher's identity badge to them, they were overwhelmed with hatred and anger, so they didn't take the time to think, assuming it was a provocation. But now that she had calmed down slightly, Abe Seimei realized that this Demon King didn't seem to be someone unreasonable.
The opponent was clearly not a slaughterer; otherwise, the Twelve Divine Generals would have been easily wiped out, not just teased a little and then released.
