Winter's Scar

[Genshin x Arknights Crossover]
IF Frostnova surived and joined Rhodes Island as a normal operator, not combat (her infection was too severe) and become Doctor's student. She opened her heart, learned Doctor's way of tactical thinking, how to exploit information from surrounding (since she can't use her power freely) and learned how to use various type of 'faces' to approach people.
The treatment did help her a bit, but not enough.
THEN she was reborn as Kaeya.
Some notes before reading:
Frostnova was a pure-blooded Wendingo = Patriot biological daughter, not adopted.
Crepus was a Yetis, same to Varka.
Aether was a Sankta.