Hibachi

Profile
She's an artificial life body known as Nuhe ぬへ. Akashi House had used her for battles during the past, for now she is sealed and hidden in Akashi Laboratory.

During the fighting events of capturing Akashi House, her master Akashi Kazemaru refuses to let her die fighting for him and set her free in the wilderness.

After the Akashi House was captured, a search party found Hibachi and captured her without any resistance. Rance proceeded to teach her about sex, then let her live in his house.

In the later events after Kazemaru was recruited, She was given back to Kazemaru. Kazemaru confirmed his feelings for her and requested Hibachi to be his sub-captain which was allowed.

If the Demon army takes over Himeji she remains sealed. If you gain control over Himeji after that you can start an event in which Rance is searching for a treasure and discover a hidden lab with Hibachi. He H's her once and reseals her. This scene can also be accessed by demanding Akashi House to surrender, then checking the new event.

Trivia
Hibachi (literally "fire bowl") is also known as a traditional Japanese heating device.