Yeojin just love being alone, but then she met Yerim, a person who will change her perspective, not knowing why she's really affected by her. 

"why are you telling me this?" she whispers, her voice softer than before. why am i telling you this? you question yourself. you don't know if you're being honest. there was something different in the way the calmness of the night affected you. the moon was shining brightly and the stars felt like they multiplied. there was something different with the scenery, the atmosphere. maybe that's why you're telling her this. 

Sometimes, even in the coldest season, there's someone that makes us feel warm and fuzzy.