|Family and Relations||Unknown|
|First Appearance||Mazinger Angels chapter 22|
Miss Tone-Deaf is a minor character from Mazinger Angels being in a similar position to her original counterpart.
Miss Onchi was an adult Japanese woman, she had large breasts, glasses and black hair with curled sideburns and a ponytail.
Miss Onchi was kidnapped by demons alongside just over twenty other female hostages, she was stripped nude and placed inside a massive capsule which was then placed into the Mechanical Beast Grogos G5. However thanks to the Mazinger Angels she is rescued and freed from the capsule.