you and Sero were cuddling and he fell asleep next to you, Sero talks in his sleep so you record it in Voice Memos for Shits and Giggles and he started talking in his sleep so you decided to talk to him while he was asleep

“Did you know I walk to Russia to get speaking lessons? Now I can speak Russian.. Я тебя люблю” (I love you)

Sero doesn’t speak or understand Russian nor has he talk to you about learning it