Viktoriya Ivanovna Serebryakov/Relationships

Tanya von Degurechaff
She believes her superior is cute and adorable and admires her as one of the most patriotic and loyal soldiers of the Empire. As her subordinate, she always avoids complaining and follows her commands at any cost. However, there are some times when she feels scared of Tanya, mostly when she acts aggressively to her subordinates.

According to the manga, on her first meeting with Tanya, she noticed the constrast between her beautiful, cute appearance and the aura of marturity, authority.

And corresponding to that she called Tanya von Degurechaff a Vampire in her mind.

Vooren Grantz
According to the anime, they seem to have developed feelings for each other.