Nianxia/Lily
"I'm in love with my sister, I'm such a beast"
She fell in love with her sister, but blood is an unbridgeable gap
So what, she's not her biological child, she was picked up by her sister, just a picked one. If her sister doesn't like it, it doesn't matter, she will protect her sister silently.
"From now on, you will be my sister, and my parents will be your parents. I will always protect you." "I will also protect my sister."
This is the immature promise made by two immature children on that rainy day, in that dark and damp little paper.
Purpose: Have a one-sided understanding of family, friendship and love...?
