[duckroll]

Originally Posted by morbosfist

I found it odd that

Spoiler:

Eureka seems to have dyed her hair in the flashback.

Going by the next episode previews, there doesn't seem to be any logical reason for it, since her natural color wasn't a secret.

It's not about it being a secret.

Spoiler:

I would imagine it's about trying to fit in with society and giving Ao a normal normal life instead of everyone looking at them weird and calling them aliens or monsters or whatever. We've already seen the reactions that Ao got after he came out of Nirvash.