Sasori and Deidara first met when Deidara was forcefully recruited into Akatsuki after being defeated by Itachi. Sasori needed a new partner after his previous partner, Orochimaru, defected from Akatsuki. Sasori commented on how Deidara seemed like someone who would die young. Sasori and Deidara would work together for about three years and nothing is really known about this time spent together. Both Sasori and Deidara consider themselves artists, though their artistic philosophies differed drastically. Sasori believed art was meant to last for an eternity for posterity and to leave something for the future. Deidara believed art was meant to last only for a moment, so that the artist can seek to create even greater art and even greater stimulation. These philosophies are reflected in their fighting techniques as Deidara uses detonating clay to explode enemies and Sasori uses puppets and even made his own body into a puppet so as to achieve immortality. Ironically Sasori prefers to end fights quickly and hates to keep people waiting, whereas Deidara likes to take his time with an opponent. This leads to frequent bickering between the two of them, even if they are being confronted by enemies. Deidara actually seems to respect Sasori’s art and his exceptional knowledge of it, referring to him as “Sasori no Danna” which means Master Sasori (in the English Anime it is translated as “Sasori my man”). Sasori has no respect for Deidara’s art, calling it a cheap pyrotechnics display and referring to him as a brat. Sasori often ends their arguments with threats to kill Deidara. In spite of threats to kill Deidara, Sasori often made efforts to protect him and often scolded him for not being more prepared in battle. Deidara seemed to enjoy getting an angry response out of his usually emotionless partner.
Kazekage Rescue Arc
Sasori and Deidara traveled towards Sunagakure, in which Sasori voiced concerns if Deidara was prepared enough to fight Gaara. Deidara assured Sasori that he brought his c3 clay just in case. They managed to infiltrate Sunagakure easily thanks to Sasori’s brainwashed ally Yura. Deidara makes a clay bird and asked what Sasori thought of his sculpture. Sasori replied by telling him not to keep him waiting. Deidara simply encouraged Sasori to watch the fight and enjoy the show. Though Deidara’s arms was destroyed in the fight, he managed to defeat Gaara and smiled at the thought of how angry Sasori would be for taking so long. They quickly left Sunagakure, but were confronted by Gaara’s brother Kankuro. After seeing Kankuro was a puppet master like himself, Sasori encouraged Deidara to go on ahead. Deidara smiled and confidently thought of how easily Sasori would defeat him. Kankuro attempted to attack Deidara before his departure, but Sasori quickly stopped the attack. Sasori defeated Kankuro and managed to catch up to Deidara, who seemed amused that Sasori was keeping him waiting for a change. They arrived at the Akatsuki headquarters and helped to seal the One Tailed Shukaku. They stayed behind to confront the team of ninjas that came to save Gaara. Deidara and Sasori get into an argument over who should fight Naruto. Sasori wanted to fight him so as to meet the quota of one jinchuriki each. Deidara wanted to fight him as he saw him as the perfect “canvas” for his art. This led to an argument about art, that didn’t stop even when Naruto, the person they were supposed to capture and were arguing about in the first place, attempted to attack them. Deidara created a clay bird and took off with Gaara’s body against Sasori’s wishes, to which Naruto and Kakashi followed. Sasori battled Chiyo and Sakura but was ultimately killed, though not before he informed them about a spy in among Orochimaru’s followers, revealing a grudge he held against his former partner. Meanwhile Deidara lost his other arm fighting Kakashi, and thought about how Sasori would be mad at him for not thinking ahead more carefully. Deidara hid as Chiyo and Sakura met up with Kakashi and Naruto. Shocked that Sasori was defeated, Deidara spoke to Sasori in his mind claiming “you relied too much on that puppet body of yours, even though it revealed your weak spot. Still it was a death worthy of an artist.” Deidara was then confronted by Team Guy, but managed to escape by faking his suicide by explosion.
Itachi Pursuit Arc
Now partnered with Tobi, Deidara learns of former Akatsuki member Orochimaru’s death. Deidara was seriously angered by this having wanted to kill Orochimaru in honor of Sasori. Sasori hated Orochimaru for betraying him and Akatsuki. Deidara decides the next best thing is to defeat Orochimaru’s killer Sasuke. Deidara becomes increasingly angry as Sasuke overcame each and every piece of art he threw at him, including his c4 Garuda which he was planning to use to kill Itachi. He ultimately uses his c0 “Ultimate Art”, which kills him in a massive suicide bombing but ultimately fails to kill Sasuke.
Shinobi World War Arc
Kabuto resurrects Sasori and Deidara for his army in the Fourth Shinobi War. He assigned them to the Surprise Attack and Diversion Platoon. Sasori and Deidara briefly argue about art, in which Sasori threatens to kill Deidara. Deidara replies that they are already dead so it didn’t matter. When they confront the Surprise Attack Division of the Allied Shinobi Forces. Deidara exclaims for them not to “underestimate this artistic duo”. Though they could not be killed do to the nature of the reanimation jutsu, Sasori still made attempts to protect Deidara from Omoi’s sword attack. They are quickly captured inside of two Black Ant Puppets belonging to Kankuro. Kankuro begins to tell Sasori how he has been immortalized because his soul carries on in his creations. Deidara becomes enraged, making fervent pleas for Sasori not to listen. He attempts to blow himself up with c0, but his explosion is stopped by Omoi’s lightning style. Sasori soul is released after he receives closure from Kankuro’s statement. This shocks Deidara, who yells out for Sasori to answer him. In an anime filler episode, Deidara manages to briefly escape from captivity with the help of Zetsu. While alone, Deidara reveals himself to be sad about how Sasori “went to soon” and how he was now alone. He is ultimately recaptured and his soul would be released after Kabuto undid the reincarnation jutsu.
Conclusions on Sasori and Deidara’s Relationship
Though the two of them are often fighting about their art, they seem to generally care for each other. Sasori constantly threatens to kill Deidara, but at the same time goes out of his way protect Deidara when they fight together such as from Kankuro in the Kazekage Rescue Arc and from Omoi in the Shinobi World War Arc. He also frequently lectures Deidara about being properly prepared in fights. Deidara seems enjoy getting Sasori angry at him, taking pleasure in making him wait and going against what Sasori wants when he takes Gaara’s body to lure Naruto away in the Kazekage Rescue Arc. Ironically he seems to display a lot more care for Sasori when he dies, like when he wanted to kill Orochimaru in honor of Sasori in the Itachi Pursuit Arc or in the Shinobi World War where he thought to himself how Sasori went to quickly and that he was now alone. Strangely enough when they are around each other they can’t seem to help but argue. Perhaps it was just too difficult for them to admit that they needed each other.