Kira

Kira is a new generation duelist first introduced in the Versus Revolution Final season of the Duel Masters Anime.

He's Joe Kirifuda's childhood friend and rival, and is a year older than him. He's also one of the Duel Master of a new generation.

Appearance
He is a blonde spiky-haired boy. He is at least 3 times taller than Joe despite him being just a year older than him.

At the age of 11, he replaces his white scarf for a red one given by Joe.

Personality
Although he is a kid around the age of Joe, for some reason his dueling skills rivals those of the strongest rivals Joe's Father ever faced even when he was around 8 years old, making him literally a prodigy.

Outside of dueling, he also always beats Joe in any kind of competition, even dueling. He was shown to be quite calculative, as he have noted down all of his wins and losses against Joe.

It is possible that Kira might had been manipulated and used by evil forces in Duel Masters 2017, as shown with his hostility against Joe during and after the duel in the episode with his mother berating him after the duel (And is later seen manipulating him in a way similar to the Master with Hakuoh in Shobu's first adventure).

He also had advanced knowledge of the creature world and true duel as he was capable of teleporting himself into the creature world and Duel Tower. Like most light duelists, he prefers to limit his opponent's choices before ending with an all out attack. He tends to be focused on his own way of justice to the point of being blind of other matters at hand. This even results in him causing a disruption in the balance of the creature world, not thinking about the dire consequences. Due to his twisted sense of justice, he was merciless towards enemy creature spirits, even killing them in stark opposition of the Kirifuda Family's belief that all life was precious and meaningful no matter the circumstances. However, he do have some conscious and regrets on his actions, as he felt guilt over his actions and that Joe will disapprove his actions if he knows the truth.

Duel Masters Versus Revolution Final
Kira first met Joe when Joe was 7 years old under a cherry blossom tree. He was quite impressed by Joe's artistic talents, and has defeated joe endless times until one time where Joe was defeated by Basara and the 2 fought. Despite him swarming the field with Mono-Light rush and guarding himself with Phantasm, Moon's Radiance, Joe managed to win using Jolly the Johnny Joe.

Duel Masters (2017)
He was in a plane when the meteor shower appears.

He was transferred to the school Joe attends. Joe encounters Kira again when he was trying to see what was going on within the crowd. Kira then hangs out with Joe in Lulu Takigawa's bar, exploring the shopping district and having ramen in Joe's favourite ramen stand.

However, when they had dueled, He had completely locked down Joe's field using Shouten, Stellar Guidance and Wonder Turtle, Great Labyrinth Turtle and became extremely hostile, and despite Joe sending out Jolly the Johnny, he used Shouten's ability to redirect the attack to Wonder turtle and crushed Joe. When Joe asked him for more answers he left. When he went back home, his mother, which is shown as a silhouette, berated him.

He also warned Joe about Boltz later on and followed him (Boltz) when he escaped to a portal. Back in his home, he enters the crystal room and threw a diamond into the gate. He receives a blank card and his mother reveals that it won't be complete until Kira have his true determination.

Later on after defeating Joe again, he encounters Boltz in a fiery area and challenges him to a real duel similar to the Shizenseijin encounter that Joe had. Boltz managed to break all of his shields only to have Kira cast Novalty Amaze as a last shield, then the blank card materialized in front of him and reveals it to be the black king of light, Ov Sidia. Kira sends it out using the Super Shield Trigger bonus and it sends out 4 other Metallicas as Boltz has 4 creatures. Then he goes for the one shot, giving him 9 shields due to Ov Sidia's Master Labyrinth and defeats Boltz before meeting Joe again in the sunset, with Joe seeing something wrong with him.

He later went to the Ramen Festival with Joe and participated in a battle royale that involved him, Joe, Team Usagi and Shacho's Gang and was defeated by Pyonko-Hime.

Later on he and Joe saw a Duel Warrior Jababa Hat that sells hats that mind control others, including Uraraka Momo and Shacho's gang. After he distracted Joe with a hat, he went to the house directly and saw him as a scammer. Then he challenges him to a duel. While Jababa Hat's infinite attack caused the destruction of all his creatures, he used DG ~The Thing Made By Man~ to spam 4 copies of itself and at the next turn despite Jababa Hat's Babylon Gelg, he went for all the shields and won. After he won he killed the Jababa Hat out of "Justice" and left Joe.

Manga
Joe Kirifuda encountered him enjoying an ice cream cone when travelling with Bainaradoor. However, when Joe tried to exit the Bainaradoor, his hand mistakenly swiped Kira's hand and caused the ice cream to go off the ground, enraging him with Joe not knowing why. (And only noticing after he beat General Rabbit in Pyonko-Hime's hot air balloon).

He is also noticeably more ruthless in the manga, physically killing Duel Warriors since he sees them as balance usurpers and "Evil".

Duel Masters Versus Revolution Final
He uses a Light Civilization deck.

Duel Masters (2017)
He uses a Light Civilization Metallica deck.

Trivia

 * Kira's character concept is parallel to most of the prominent Light Civilization duelists in the anime series Hakuoh, Leo Hyakujuu and Lucifer;
 * His character design and concept is based on Leo Hyakujuu and Lucifer.
 * He is also similar to Hakuoh in Shobu Kirifuda's first adventure where he seems to be used by an evil master, in this case, his mother.
 * All are rivals of the central protagonist of the series; Hakuoh to Shobu, Leo and Lucifer to Katta, Kira to Joe.
 * Their strategies involves restricting/removing their opponents options before ending with an all out attack.
 * He might be as strong as Basara or Lucifer in the VSR and VSRF series and considerably much stronger than Benchan, Leo Hyakujuu and Kojiro, which are respectable rivals of Katta when it comes to dueling.