"I want to hate you again."
Keyi has an undisclosed "disease". The world she sees is different from that of most people, and is full of gray. Through getting to know Xie Yu and facing difficulties with Xie Yu, she understood the role of the so-called "disease" for the first time.
As time passes, more suspenseful incidents emerge, allowing Key to delve deeper into the "disease." Before the truth emerges, staying sane is the most critical test.
Purpose: Eat more oranges, good for your health