User blog comment:Mellowix/What do you think Deku's Dad will be like?/@comment-27579341-20201011200940

For design, I wouldn't want him to be a carbon copy of Deku. While there's a family resemblance, I want Hisashi to look unique.

When it comes to his quirk, I'd like a comedic twist put on it, so it stands out from the dozens of fire quirks. Something akin to "Pepper Breath": The more spicy food he eats, the more embers he can breath out. There could be an unexpected cool moment with this weak quirk, where he beautifully lights up a dark area. (Think of Groot's fireflies in Guardian of the Galaxy)

When it comes to the theories of Hisashi being a villain or regular guy: I'd choose a middle ground. The point of Deku's character, is comes from an everyday household, so his father being overly special undermines that. At the same time, Hisashi's introduction needs to be plot relevant and his absence explored.

This would be my ideal version: The theory of the students fleeing to America could work well. Hisashi is stated to work aboard afterall. So when his son needs somewhere to hide, he offers his USA home. If All Might comes along, there could certainly be interesting interactions.

There's no overly bitter feelings between father and son, but it's just awkward. It's explained Hisashi is naturally aloof and fears failing to provide for his family emotionally. So he distances himself, preferring to give financial support instead. He means well, but is too caught up in his "They're better off without me" attitude.

Hisashi works for the Safety Commission, though isn't aware of their shadier practices. He'd act as the main cast's gateway into the organisation. As the Commsion becomes more antagonistic, Hisashi is forced to think independently, questioning his morals and loyalties.