Who want to be a witch [link] strikes again!

Let split Tetsute Himawari!!

Miwa - Cold, pragmatic and resolute.
She has no feelings, and she has a katana. Do the maths.
Her magic element is Iron.

Hikari - With her mind full of curiosity, and eager to learn new things, she's Hima's more intelligent and kind half.
Her magic element is Light.