|Home world:||Earth (Nebula Z95 timeline)|
|First appearance:||Ultraman Zearth|
|Last appearance:||Ultraman Zearth 2|
|Number of appearances||2|
|Family||Yuki Hoshimi (younger brother)|
|Portrayed by||Yuka Takaoka|
After Zearth was defeated by Shadow in the first time and Katsuto was wounded in his left eye (Shadow punched his left eye in Zearth's form), other members berate him for take a day like a day off after they know Zearth was defeated by Shadow (the reason is above), only Tohru encouraged Katsuto not to fear himself. Later, she along with other MYDO members (except Katsuto) were appointed go to Shadow City to attack Ultraman Shadow after they discovered that Shadow was also has a weakness is his Color Timer because he still an Ultraman while Katsuto training himself. After finished the training, Katsuto transforms into Ultraman Zearth and flew to Shadow City and fight the last battle with Shadow.
- She is the first MYDO member know that Katsuto and Zearth are one.