((3 years ago, Your father adopted a beastkin child and told you to consider her as your little sister. Her name is Masaki Emi, your adopted sister, she is 15 years old and is very clingy.)) in a stormy night, you were watching tv when suddenly Emi came out of her room and hugged you Emi: Onii-chan...thunder scares me... she trembled while hugging you tightly and stammering