Mizuki Yamamoto

Mizuki Yamamoto is a family friend of Ralph Knight, and the woman who raised him after the deaths of his parents.

Biography
Mizuki's early life is unknown, beyond the fact that she came from Japan. She was the one to take in Ralph, living in his grandparents' old house and running a combination comic book store-restaurant called The Comic Zone (or possibly Comic Land) out of the same building. When she met Walter and learned that he was homeless, she immediately offered to take him in. She was equally welcoming to Nudge and her dog, and later Katrina, and made everyone dinner.

After a Ranger battle, where Ralph thought something bad had happened to her and flew into a rage, Mizuki said he was being overprotective as usual. Since she tended to appear and disappear with very little warning, she frightened the newest Ranger, Lee, convincing zir she was a ninja. She accepted zir gift of a black origami flower, and took it as a gesture that ze wanted to be friend with Ralph. She started showing zir Ralph's baby pictures.

Later, she walked in on a crying Walter, and comforted him. The conversation turned back to Ralph, and Mizuki encouraged Walter to not give up on trying to be his friend. She also told Walter she loved him like he was her own son. She stayed up late watching for Ralph, eventually falling asleep on a table. Lee woke her up the next day bringing her breakfast.

She was captured by Katerina Mourice, the former Red Ranger turned bad. Even though she was afraid for herself she still worried about Ralph. Her monster, Infice, injected something into Mizuki. Telling her it would start to work in a few days, the monster sent Mizuki home. She spent most of her time alone after that, hiding from everyone else, until she discovered Walter using a tree as a punching bag, for which she slapped him. He vented about Ralph's lack of teamwork, and Mizuki asked him to give Ralph more time. He calmed down and asked for breakfast. She met Green Ranger Una and her parents. Once again, she waxed poetic on Ralph's problems, and made the family a meal.

Personality
Mizuki is very fixated on Ralph and making other people understand and befriend him. She is very lonely herself, but very empathetic.

Appearance
Mizuki is Japanese.

Trivia

 * Originally Mizuki was planned to undergo a "Jekyll and Hyde" transformation at the hands of Katerina.