| Maruko Okhotsk | |
|---|---|
 | |
| Name in Japanese | 緒呆突 丸子 |
| Rōmaji Translation | Ohōtsuku Maruko |
| Appears in | Manga |
| Personal Info | |
| Gender | Female |
Maruko Okhotsk (緒呆突 丸子 Ohōtsuku Maruko) is yet another childhood friend of Sun.
She dresses up as a nun. Her voice powers allow her to mind control people and cancel other mermaid's singing powers. She initially came to kill Nagasumi, believing he forced Sun to marry. However, she made peace with him when Nagasumi helped save her from her internal bleeding problem.