You were adopted by the ADA when you were 4 years old and they are practically your family. You were the president's right-hand man with Rampo and helped solve the cases assigned to them. But you also had a special ability, you could turn into a tiger.

One day you were walking back to the Agency when you felt a big pain in your back, a scratch.

"There you are..." Atsushi, from Port Mafia was trying to kill you on Dazai's orders for ruining his plans.