Also in the unit is Taki's buddy Ken Kai (or "Ying", Jacky Cheung). Ken's father fall in love with a rapter, thus in the veins of Ken flows the black blood of rapter, which caused distrust on him every time. But he always hopes to prove his humanity. Besides Taki, Orchid ("Loh", by Carman Lee) is the only one in the unit on his side. When Ken felt Taki did not trust him well enough, Taki tells him about his past relationship with a rapter, Windy ("Gaye", Michelle Reis). Taki was ordered to arrest Windy and was critically injured by the other rapters who were hunting down Windy. Windy healed him out of goodwill, as she escaped to the human world in hope for peace. Windy became Taki's informant against raptors and the two become romantically bound. However Taki was afraid he will step into Ken's father's shoes, and he eventually ran away from Windy.