Naoki is a Fixer of the brutal Hook Office. She first appears in the same Chapter, Episode 1.

Naoki is mostly a calm person outside of combat but once before a foe she will become rapidly hostile and probably go on a rampage, she is also very thoughtful, being aware of how peculiar the Office she works for is and quickly finding a good reason as to why. She also seems quite knowledgeable about Workshop equipment and what precautions should be taken before buying anything such as one doing their own research about it.

Naoki has a light voice, with a hint of an aggressive tone.