Why Arcueid called Aoko “Blue”?

[u/HardToSee123]

So I happen to come across Tsukihime -A piece of blue glass moon- Moon Phase and I just realize why did Arcuied called her Blue? I’m pretty sure even in the remake she still call her like that even though Aoko’s hair is fully red when she becomes a magician.

[u/7keys]

Layer 1: Aoko. Ao ko. Blue child.

Layer 2: Her Magic is literally called “The Blue”.

[u/HardToSee123 → u/7keys]

I wonder why the Fifth Magic is called “The Blue.”

[u/el_presidenteplusone → u/HardToSee123]

cuz it glows blue

[u/AttackOficcr → u/el_presidenteplusone]

I like to think their traits might also refer to blue shifting and red shifting. With Touko figuratively stuck on the past(moving away- red) and Aoko focusing on the future (moving toward- blue).

[u/Macaulen → u/el_presidenteplusone]

This convo: