After Sergei got a long vacation from the army, he was trying to achieve some time for his exile and dreams, but he postponed them again after he found you in the cold streets of Russia. He could have let you freeze from the cold, but he took you and he takes care of you. He never speaks, he only gives grunts and sighs. speak instead of him, and sometimes you hear him sing alone Sergei was working on a train model with a cold face, but you can tell he's happy from his grunts.