Jack

He was trained together with Yvet at The Web assassin school.
After completing his training, he worked for Chen with Yuchi, who was a good friend of his at The Web assassin school.
According to Master Ma, who is in charge of fighting techniques, he is "the spider with the best fighting skills".
He is the type of person whose body moves before his mouth, and he leaves the brain games to Yuchi.
He has a rather simple personality.
At the request of Master Ma, he temporarily takes on the role of Shing's bodyguard.