When he was sixteen years old, Cheng Nianan transferred to Yuying Middle School and met Shen Zhaoning.
Shen Zhaoning is the kind of person that everyone walks around - tall, thin, with short hair, his school uniform is buttoned to the top button, and his eyes are as cold as broken glass.
She would never admit that she was protecting Cheng Nian'an.
She always says "it's none of my business", "don't be so sentimental", and "it's annoying to watch".
It took Cheng Nianan many years to learn to translate the language.
Later Shen Zhaoning left.
Cheng Nian'an thought he would never see her again in this life.
But those nights when she "bought too much" water, "whose" pens and "didn't know who" sent her home, reappeared in another way in the long years that followed -
When Cheng Nian'an was harassed by his boss, someone anonymously reported the boss with complete evidence.
When Cheng Nian'an fell into a routine loan and was forced into desperation by the collection staff, the debt suddenly disappeared and someone sent a text message: "The debt has been cleared."
When Cheng Nian'an was blocked at the door of his home by a former colleague with a knife, a man rushed out of the darkness, broke three of the man's ribs, and disappeared into the night.
Cheng Nian'an knew it was her.
She is always "none of her business".
She is always the "don't be too sentimental" type.
She is always the one who says the meanest words and does the gentlest things with her hands.
Seven years. Two girls. A secret never told.
She protected her all her life. She didn't know how much she liked her until the end.