
Kadaj usually wears a completely black leather trenchcoat which is unzipped at the bottom and is strapped around his legs with black pants underneath them and black boots, with his sword sheath wrapped around his waist to hang behind him as he runs.
Brother to Loz and Yazoo and one of the three Remnants of Jenova
Kadaj is the type of person who ignores everything that is not important to him, save his triplet brothers and his brother, Sephiroth...along with Cloud, who they also tend to think is their brother. He is also very much loyal to his 'Mother', Jenova, unless it comes to his girlfriend, Dragon.
At the moment, Kadaj is madly in love with Dragon Crescent, and claims her as his and his alone.
Kadaj has his sword, Souba, and his motorcycle.
His sword, Souba:
Souba is a unique sword that resembles a katana, but has two blades instead of one. A dual katana, you could call it, except it doesn't pull apart.
His motorcycle:
This is a bike that is identical for all three triplets, three of them. Kadaj's bike has no known name at the moment, however.
Two years have passed since Cloud Strife defeated Sephiroth, who attempted to damage the planet by summoning a meteor. The city of Midgar was destroyed. Cloud has been living with Tifa Lockhart in a city called Edge and both have been taking care of Marlene, their friend Barret Wallace's daughter, and the orphan Denzel. Cloud and many other citizens are infected by a strange new disease known as "Geostigma". Cloud is on his way to meet the Turks, a group that performs operations with the megacorporation Shinra. He is attacked by three men—Kadaj, Loz, and Yazoo—who believe that he has hidden their "mother". Kadaj ends the battle when he discovers that Cloud does not have her. When he arrives at the meeting place, Cloud discovers that Shinra's president, Rufus Shinra, survived the events of the original title. Rufus attempts to enlist Cloud's help to stop the trio, but Cloud refuses. Kadaj arrives and demands that Rufus tell him where to find his mother. It is revealed that his mother is the remains of Jenova, an extraterrestrial lifeform whose cells were injected in Sephiroth's body and helped him in Final Fantasy VII, and is connected to the cause of the Geostigma. The trio are planning a reunion with Sephiroth that will culminate in an assault on the Planet.
Loz arrives at the church of the late Aerith Gainsborough in Midgar to look for Jenova's remains, and is confronted by Tifa. After defeating Tifa, he captures Marlene under Kadaj's orders. Yazoo begins collecting children infected with Geostigma, including Denzel, telling them they will be healed. He takes them to the Forgotten City. Cloud goes to the city to rescue them after getting the information from the Turks. In the Forgotten City, Cloud battles the gang and is overpowered. He is rescued by his former comrade Vincent Valentine. Vincent tells Cloud what the trio is seeking and that it could result in the return of Sephiroth. Cloud finds Marlene and returns to Edge face Kadaj's gang. The trio call forth several monsters, including the enormous creature Bahamut SIN, to attack the populace who are trying to rescue the kidnapped children. Turks Reno and Rude try to deal with Yazoo and Loz who are searching for Jenova's remains in the city's monument as informed by Rufus. After rescuing Denzel, Cloud, Tifa and their old companions, dispatch the monsters and Bahamut SIN.
In a nearby building, Rufus tells Kadaj that he has been in possession of Jenova's remains all along. He throws the box containing the remains from the edge of the building. Kadaj recovers the remains shortly after Rufus shoots and damages them. Cloud pursues the trio to the ruins of Midgar. Yazoo and Loz are caught in an explosion, and Cloud catches Kadaj. In Aerith's church, an outflow of water infused with Lifestream, the planet life force, cures Cloud's Geostigma. Vincent explains to the group that Kadaj's gang are remnants of Sephiroth, which makes them decide to leave them to Cloud due to his previous fights against Sephiroth. Outmatched by Cloud in battle, Kadaj absorbs Jenova's remains into his body, which allows Sephiroth to reappear. Sephiroth tells Cloud that once those who die from the Geostigma join the Lifestream, he will be able to control the planet and use it as a vessel to travel in search of a new planet to rule, in the same way Jenova did. Cloud defeats Sephiroth, who dissipates, leaving a weakened Kadaj at Cloud's mercy. Aerith is then heard telling Kadaj to be at peace as he disappears with the Lifestream. A healing rain starts falling across Edge, curing the people of their Geostigma. Cloud is shot by Yazoo, who is also succumbing to the healing rain alongside Loz. Both prepare one last attack at Cloud as he charges at them, resulting in a large explosion that engulfs all three.
He is then somehow revived after the effects and now roams the Multiverse.