Masuta Kira

Then there's Kira. For starters, that's a girl's name. Kira. I'm not the only one seeing this, right? And he's the reason I said we're kinda badasses. I mean, carrying six Katanas is cool, but what the hell's the point if you can't use them? He does all those spinny tricks with them but it's just like - well, he could've taken a gun, or just a slightly lower amount of Katanas. Or something. And he has this really, really blatant crush on Sefer. Like, I guess she's pretty hot, but there are far better looking girls and - well, Kira's not bad looking himself, so I'm sure he'd have no problem scoring any of them. But Sefer's just so goddamned evil, I mean, I've no issue being friends with her but I wouldn't be like, "Hey, Sefer, let's smash pissers!" - mainly because I'm not a lesbian, but even if I were, I'd probably go for someone slightly less mephistophelian. But whatever. Different strokes for different folks. Masutā Kirā, usually spelt as Masuta Kira and often shortened just to Kira, is a member of the Shinsengumi. He possesses the Stand Gathering Clouds Of Heaven.

Biography
Kira is hotheaded and ambitious. He constantly seeks to prove himself to Sefer Yetzirah by volunteering for the most dangerous tasks and missions, as well as showing off in battle. He carries six Katana, a testament to his love of flair, and practices tricks with them to use as taunts. Lucy Farr suspects he has a crush on Sefer, which he outright denies. His youthful nature is highlighted by his immaturity, and next to cool-headed Shinsengumi such as Original Zero, he appears as nothing more than a punk.

Negotiations with the Sahagin
Kira was introduced as the Kusanagi headed to the Sahagin homeworld of Sapsa to attempt to gain allies. He walked with Lucy to the bridge, having waited outside the observation deck to boast that he had been assigned to Sefer's personal security detail for the upcoming mission. He remained alongside the other Shinsengumi when the Kusanagi returned to orbit, at which point Cassius Calm escaped from the brig, engaging Lucy in battle. She was defeated, though Cassius spared her life in exchange for his freedom - though Kira was unable to simply accept these terms, as he was so angered by Lucy's condition. He chased Cassius down before he could escape and challenged him to a duel to first blood, threatening to destroy him with his Stand, Gathering Clouds Of Heaven, if he didn't agree to it.

Gathering Clouds Of Heaven
Main Article: Gathering Clouds Of Heaven

Kira's Stand is Gathering Clouds Of Heaven, an immensely powerful humanoid Stand with angelic qualities. Its abilities are currently unknown.

Trivia

 * Kira is named after Masta Killa, a member of the Wu-Tang Clan. Masutā Kirā is the Japanese pronounciation of "Masta Killa", which would be written as マスター・キラー. His name is usually spelt without the 'ā' character because it is not a standard character.
 * Masuta Kira's name uses the Japanese naming convention, where the first name is the surname, and the last name is the given name. He shares this distinction with Original Zero.
 * Claymore ships Kira and Lucy Farr.