Hong Kong, biological laboratory.
The surroundings are deadly quiet. This area has always been a suburb of Hong Kong, not a residential area, with few people passing by, especially after the incident five years ago.
As night falls, the environment suddenly darkens. The weather in Hong Kong is rather humid, and right now, there's a light drizzle...
Suddenly, a shadowy figure appears at the entrance of the laboratory, clad in a black robe with a hood over the head, making it difficult to see the newcomer's face, except for the corners of the mouth, which curl into a sinister smile.
Five years ago, this was the place of his humiliation, and five years later, he vows to wash away that disgrace.
