During the day, Cancan is a transparent campus kid who lets others bully her. At night, she is a mysterious and calm on-site cleaner. She has seen countless people's hearts turn dark, but she always sticks to the bottom line. An unexpected clean-up task allowed her to see the most embarrassing side of the classmates who bullied her, and she also saw clearly the fragility behind the vanity. Faced with the injustice of her fate, she rose up to resist, fought villains, was good at disguise, and finally used her own way to make those evildoers reap the consequences.
