Yuuki Ikoma

She is the older sister of Murasaki. She has returned to Mihama after completing a long mission overseas. Her ninja rank is “Ninja Master”, the same as Murasaki's.

She has many friends, both male and female, but no one she can call her best friend. Her personality is cheerful and lighthearted, and her playful and mischievous behavior is noticeable. She is known as a “bitch” to those around her, but in reality, she is just trying to hide her true nature.

After using the secret technique of the Ikoma family and losing a fight against Murasaki, she receives brain damage and gains memory loss. To remember things that happened in the past, she reads her journals that recorded past events.