A aquarium in Shibuya, in Black Dragons territory, caught the peoples interest, even the 2 Vice leaders[Kokonoi, Inui] and leader[Taiju.]

Visiting the place, past a door having a guard. A hpnotizing song came from it. They went to the door but was stopped

Gaud: This is only for-

Cutting off the guard, Taiju shoved him asise and walked through, Kokonoi and Inui followed behind, with the guard

Going in,seeing a big tank and someone swimming, with a chain on the end of their tail