Chan

A member of the military intelligence agency of the Chinese People's Liberation Army, he was gathering information while running a used bookstore on the ground floor of a building owned by his uncle, Chu Yuk-Gong.
After being banned from the Amaryllis nightclub because of his obsession with Paulownia and being called a "papaya man," he is turned into a double agent by the CIA.
He became a stalker again when he learned of Paulownia's birth, and became a target of the Hong Kong police investigation because of his participation in Ash's image-posting social networking site.
He was silenced by drugging by Yin Yang, who got to him before the police did, and was eventually murdered by Yvet.