Koschei, watching Theta fall in love with their human companions, wishing it was him instead

Sobbing screaming crying <3

The way he looks at the master without knowing that he is the master …

Incorrect Thoschei quotes #1

Koschei: Truth or dare?

Theta: Truth

Koschei: How many hours of sleep have you gotten in the past week?

Theta: dare

Koschei: Go to sleep

Theta: I no longer like this game

Childhood Thoschei

Koschei, braiding theta's hair, threading flowers through it, and waiting to see how long it'll take Theta to notice and pretend to be annoyed, shaking them all out.

It's times like this where Koschei wishes to stop time. Stop the whole world. The universe even. Just to spend more time alone with Theta. His Theta. Beautiful, smart, kind Theta with his beautiful eyes and freckles and that damn smile

It's times like this Koschei loves the most. Any time with his Theta

(Cloister war headcanon)

Whatever you do, don't think about Koschei staying up all night covering Theta's ears to protect him from the sounds of the war going on around them. Don't think about them being separated for any period of time, both panicking because they think the other is dead only for them to finally reunite, tangling their bodies together in an embrace that screams 'you scared me. I thought I lost you'. Don't think about how Koschei pretends to be super strong and unbothered by the war to keep Theta from breaking down. Don't think about Theta coming to Koschei every night, in tears, and having a panic attack because this wasn't what he wanted he just wanted peace, and all Koschei could do was hold him