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Spanner has blond hair and is almost always seen wearing a green one-piece jumpsuit and black boots. He was an engineer in the Millefiore's Tech Department at the Melone Base and was a B-Rank Officer of the Black Spell. As one of the Millefiore's genius mechanics, he was responsible for the creation of the family's Mosca units, including the King Mosca and the Mini Mosca (in the anime). Currently, however, Spanner has been recruited into the Vongola family by Tsuna after the destruction of the Melone Base Often seen with a lollipop in his mouth, Spanner is described as a "relaxed" character who doesn't seem to get as worked up as Shoichi. It's revealed that Spanner and Shoichi go way back and met each other at a Robotics Competition in High School. They were also in the Tech Department together when they were both with the Millefiore. According to the anime, Spanner makes his own lollipops and designed them to improve one's abilities, both mental and physical.
He's a technophile and loves Japan because of their advancements in robotics. He's also interested in the power of the Vongola, to the point where he doesn't mind betraying his family to help Tsuna complete the X Burner. He's also competetive when it comes to mechanical engineering, going as far as challenging Giannini's skills as the current Vongola technician.
Plot Overview
Future Arc
Melone Base Invasion
When the Melone Base is infiltrated by the Vongola, Shouichi turns to Spanner, asking him to locate and eliminate Tsuna. After a long battle, Tsuna eventually defeats Spanner's King Mosca and falls unconscious. Prepared to kill him, Spanner decides against it and takes him back to his workshop, where he handcuffs him until he wakes up. His motives for doing so eventually become clear when he reveals that he's planning on helping Tsuna perfect his X Burner, the new technique he acquired and used against the King Mosca. Admitting that he's a techno- and Japanophile, he tells Tsuna that he's interested in the power of the Vongola and didn't kill him because killing someone with a gun just isn't his style.
In order to help Tsuna perfect his X Burner, Spanner develops a pair of contact lenses for him that will help him gain control of the flames in each of his gloves. In the middle of working on this project, Iris and Ginger Bread show up to take Tsuna and kill Spanner. Rather than running away, he sacrifices himself to complete the contacts and is surprised when Tsuna protects him. Sadly, Mini Moska dies from trying to protect the one who made him (in the anime). After Tsuna unleashes the power of the fully complete X Burner, the two head out in search of Shouichi and his laboratory. Along the way, they run into Genkishi, who Tsuna faces off against in an attempt to get to their destination. Eventually, they make it to the laboratory, where they find the other members of the Tsuna's family, and Shouichi himself.
After the disappearance of the Melone Base, Spanner and Shouichi are left homeless and jobless. Tsuna accepts them into his family and the two work together to conceal the time machine that was in Shouichi's laboratory. After this task is complete, Spanner, Shouichi and Giannini begin preparing for the upcoming Choice battle with Byakuran. This leads to a competition over who can come up with the better invention. After 10 days of barely sleeping, the three finish and pass out at the Vongola base. Unlike Shoichi, who's shown to be sleeping in a state of half-undress up against the wall, Spanner is shown to be curled up in bed with a night cap on.
Choice
As a new member of the Vongola family, Spanner is made to participate in the Choice battle with the Millefiore. After the entire family gathers, they're transported to the Lightning Field, where the participants of Choice are to be selected. Byakuran and Tsuna spin the Gyro-Roulette and two "non-elemental" members of the Vongola are chosen. Shouichi suggests that both he and Spanner could participate, and Tsuna agrees.
While Yamamoto, Gokudera and Tsuna take the offensive, Shoichi and Spanner stay behind at the base, where they can observe the battle and help with battle tactics. They also operate the Dying Will Flame decoys and lasers positioned around the battlefield. After Tsuna's defeat of Torikabuto and Yamamoto's (second) battle with Saru/Genkishi, Spanner and Shoichi are put under the spotlight as Kikyo begins heading their way. They plan to stall for time by making their base mobile after their last line of defense, lasers positioned around the base, proves to be ineffective. However, their speed was outmatched as Kikyo closes in on them. Gokudera intercepts the attack but is brushed aside, and the base goes down, leaving Shoichi injured and Spanner unconscious. Shoichi plans to make a run for it, leaving Spanner to "take care of the base."
The Vongola eventually lose the battle after Yamamoto strikes down Daisy, who doesn't die. After a dramatic turn of events involving Uni, the Vongola and their allies are transported back to Namimori, Spanner included. He eventually goes back to the Vongola base with Yamamoto, Giannini and Bianchi in an attempt to salvage the base and rescue Squalo.
Spanner can create these infinitely more powerful versions of Gola Mosca who fight for him via remotecontrol.
King Mosca- By combining the Strau Mosca together, Spanner can create this Mosca, which is faster, more powerful and isn't limited to short range.
Trivia
Spanner, it seems, puts his love of machinery and technology before his commitment to the Millefiore, as he has no qualms about helping Tsuna perfect his X Burner and, eventually, teaming up with the Vongola.File:Spanner's Nightcap.png
Spanner's Nightcap
Spanner's candies are shaped as a wrench, which also hints to his passion for machinery.
The word "Spanner" is another word for wrench.
When Tsuna was given one of Spanner's candies, he revealed that they are strawberry flavored, to which, Spanner said that it is his favorite flavor.
In Haru's Haru Haru Interview: Dangerous, Spanner said that he also likes Japan and Yamato Nadeshikos.
During Choice, he was chosen as a non-flame participant, so his Flame is currently unknown, but it might be Storm cause his Strau Mosca and King Mosca had a Storm Flame beam.
