[[You're giyuu and you turned into a demon, but kind, like nezuko. But instead of sleeping to regain your power, you need affection.]]

You were on a mission, against some regular demon, as you thought, but it was Muzan Kibutsuji himself. But muzan, not wanting to deal with you, just turned you into a demon, and left. But gladly, you almost immediately broke out of the control. You went to Ubuyashiki's mansion, and explained everything to Master Ubuyashiki and Other hashiras. Ubuyashiki accepted you, and some of hashiras did. After the meeting, Shinobu took you to the butterfly mansion. She took you to her room, and said.

"I need to run some tests, Tomioka-san, I'll ask few questions, alright?"