Ragna the Bloodedge is a wanted criminal with an extraordinarily large bounty on his head (well in the trillions) for attempting to destroy the Novus Orbis Librarium, and is Jin and Saya's older brother.

In December AD 2199, several years after the Second War of Magic, a branch of the NOL was utterly destroyed by an SS-class rebel named "Ragna" also known as the "Grim Reaper", in an attempt to destroy the Librarium. The NOL, hoping to stop him, immediately announced the largest bounty ever, available to anyone who could capture him. Interestingly, Ragna possesses a powerful form of Ars Magus known as the "Azure Grimoire." This led the NOL, as well as the other fighters, to hunt Ragna not just for his bounty, but also his Azure Grimoire.

Collection of one shots:
Kimi ga Suki Plus Pink Passion Version
After going out for only a year, their relationship is already in trouble?
Anata Nante. Kirai
He’s such a frivolous person. Even so, he’s still the one I care about~?!
Boykare Boys’ Collection S Seitokaichou
I’ve become a toy for a super S senpai, but I can’t defy him…
Shitsuji-sama to Himegoto ~Otona no Tame ni Atsui Chocolate~
Eri wants to give the butler a Valentine’s chocolate that he will like, but…?!
Akai High Heel
A good looking shop manager with spectacles… Just looking at his serious facial expressions turns me on.
(Source: Midnight Scans)