Why Is Aigis In Persona 4: Arena?

Aigis from Persona 3, is a playable character in Persona 4: Arena. What brings the shadow fighting android to Inaba and inside the Midnight Channel?

It all began when a plane was hijacked, the first one in over ten years. Aigis is called in to help as a Shadow Worker. Since she’s an android, Aigis had no problem thwarting the criminal group and taking back the plane. Aigis confired that a certain passenger of interest is unharmed, but also notices a package is missing. Is this what the hijackers were really after? Aigis teams up with Mitsuru and goes on a hunt to find this dangerous package. Mitsuru, who runs the Shadow Worker squad Aigis works at, goes to Inaba searching for the cargo. When she arrives, Mitsuru meets other persona users