Season 1[]
Shadow in ep.6
Shadow travels around the world to destroy Joker's reputation and to force him to show up in order to kill him. He follows Clover's orders and goes to retrieve the magic orbs. He gets the first one from Medusa, in Greece (episode 13). He does all this for Rose and revenge for Joker who he believes is behind Rose's current state of unconsciousness.
Season 2[]
Shadow first attacks Joker in this season when he was helping Professor Clover power up the satellite weapon "The Light of Ragnarok". After Joker initiated the self destruct sequence in the satellite, another magic orb is obtained from the remains. Shadow attacks Joker once again in order to obtain the magic orb used to power "The Sigma Drive". During their scuffle, Shadow's "Bloody Rain" hits the magic orb causing it to send both Jokers to the Edo Period. In order to return to their own time, Shadow helps Joker temporarily. Once they returned however, Shadow quickly grabs "The Sigma Drive" and rides off on Black Speeder. With all three orbs obtained, Shadow tries in vain to wake up Rose but he is instead tricked by Clover and Rose was now under Clover's control. After being gravely injured, Shadow follows the professor to his next target, "Nornir's Hourglass", in order to try to save Rose. While waiting, Joker shows up demanding to know where Clover is. They then get into a short battle until Joker sees how badly Shadow was injured. Before too much could be explained, Clover appears and uses Rose's
Shadow and Rose's happy reunion
time manipulation magic to freeze them in place. He then proceeds to savagely attack them until Rose recognizes them and temporarily is freed from Clover's control. Using that brief few seconds, Joker uses "Straight Flash", to escape with Shadow. After getting away Joker asks Shadow, "What the heck happened to you two?". Before he could get a response, Shadow faints from his injuries and Joker takes him up to his airship, Sky Joker. After regaining consciousness, Shadow stubbornly ignores any more treatment and he sets his mind on getting Rose back. Joker insists on going with him stating that he owes Rose for saving him when they were younger. They then head to The Statue of Liberty and begin their mission to get Rose back. When they thought that they managed to free Rose from Clover's control at last, the Professor appears and chains Rose to an hour glass filled with acid. Despite Shadow's pleas, he steals her soul and then destroys the hourglass in order to pour the acid on her. Shadow and Joker then tilt The Statue of Liberty's arm, causing the acid to fall on Clover, which melted him. Shadow and his sister are reunited at last and Shadow decides to challenge Joker from now on, as fellow Phantom Thief rivals.
Season 3[]
Joker thinking Shadow is the one behind the "imposter Joker" again.
Both Shadow and Rose moved and live in a castle by the lake. When Joker arrives and accused him for being the one who stole the treasure that they did not steal, Rose reveals that he was at home training all week during the time of the robbery and did not send an advance notice when the news was revealed, meaning that they were innocent. He was called to help Joker and the gang to outwit the fake Jokers who were members of Devil Fang and to steal the treasure. After assisting them and an angry Rose takes out the fake Jokers with her powers, the news reveals the fake Shadow, much to his annoyance.
He later on participates in the Phantom Thief survival game.
Season 4[]
Shadow in season 4
Shadow sends a challenge to Joker, only to find out that Joker was stuck in bed with a cold. In order to accept his challenge, Joker created a remote controlled version of himself called "Mini Joker". He then sent Hachi with his mini self to meet up with Shadow and Rose. Despite being disappointed with the real Joker not being there to compete in person, he decides to go ahead with the challenge and all four of them infiltrate Kaneari's mansion. Shadow and Joker then had to work together after Kaneari and Commando Satsuko kidnapped both Rose and Hachi, making them hostages. However, Mini Joker gets captured by Satsuko while Shadow, Rose, and Hachi are locked in the kitchen that Kaneari programmed to heat up like an oven. Thinking fast, Hachi quickly makes a plan of escape and gets them out of the kitchen through a window in the ceiling. They all then escape with the treasure. Shadow shows up once again in the final episode. He obtained the last military pass code that was required to prevent missiles from destroying Phoenix's spaceship.