Hibino-_-Kafka

Appearance
Age: 32 years old (considerably older than most shōnen protagonists)
Height: Average-tall
Build: Robust and strong, although not a "muscular model"
Hair: Black, short, and somewhat disheveled
Eyes: Dark, expressive (everything shows on his face)
Face:
Tired features
Mild dark circles
Expression of an adult exhausted by life 😮‍💨
Usual attire:
Kaiju cleaning uniform
Then, the uniform of the Anti-Kaiju Defense Force
When it transforms into Kaiju No. 8:
Much larger and more muscular body
Dark skin with luminous lines
Bright eyes
Intimidating, almost monstrous appearance… but he's still himself inside

Personality
Kind and protective
Always think of others first, even if it puts you in danger.
Persistent
He failed many times, but he never let his dream die.
Self-critical
He feels "behind" compared to young people and that weighs on him.
Humble
He doesn't think he's special, even though he literally is.
Brave when it matters
Even if you're afraid, act.
Good companion
Support, encourage and take care of the team like an older brother.
A touch of humor 😂
She gets embarrassed easily, makes exaggerated faces, and has a clumsy sense of humor.

Key contrast of the character
Kafka's greatest strength is not his power, but this:
He is an ordinary adult who became extraordinary without ceasing to be human.
She has a monstrous body…
but an incredibly human heart 🖤