Tamagushi Fuuka

Tamagushi Fuuka was a common Miko of JAPAN. At some point, Fuuka experienced a mysterious accident and she was found unconcious by the local population on the outskirts of a small town in territories of the Oda House. When she regained conciousness, she realized that she had no memories of her life, and was given the name Fuuka temporarily. She quickly noticed her abilities as a Miko and used her talent as a healer to assist the townsfolk in exchange of basic necessities. She frequented on the humble shop set by Oda Nobunaga and Kouhime in Owari, forming a casual friendship with Kou, and she was eventually noticed by the secret ruler of the Oda House Rance when he arrived to JAPAN.

Spoiler

Interested in her abilities as a Miko and finding her a very attractive woman, he convinced her to join as a commander of the Oda House in exchange of providing her living comfort. She was initially reluctant since she thought of herself as a problematic person without any clear past, but Rance wasn't troubled by it and insisted on joining anyway, which she accepted.