Well,probably the first writing of mine here but please help! I'm trying to find a story which features oc who's yixing's little sister and in heat. I'm not sure if the exo member who was the star of the story is Sehun or Baekhyun but I know it is one of them because I only read stories of them. And since the oc is in heat,the male(Sehun or Baek) goes with her because she's his mate and he helped her to go through the heat. I feel like the title is 'Snowflake' or something because of the Oc's name  but I can't remember and find it😭😭😭 Please do share with me if you managed to find it or know the story I'm talking about