Konno Yuuki

Konno Yuuki (紺野木綿季) was one of the players of «ALfheim Online». She formerly was leader of the guild «Sleeping Knights», a group of terminally ill patients who play using the FullDive Technology MediCuboid. She is also known as Zekken, or Absolute Sword. She won 67 consecutive duels on the street, including Kirito, although Kirito was only using one sword at that time. Kirito stated that her reaction speed was even higher than his and she was much more immersed into virtual reality than he was. She spent her last moments while logged on ALO in Asuna's arms, surrounded by her friends and more than a thousand other players.

Background
Prior to becoming known as Yuuki of ALO, Konno Yuuki was a child suffering from "Acquired Immunity Difficiency Syndrome" (AIDS) since birth; her parents, as well as her sister Aiko, were infected too. Despite this, she had always believed that one day she would be healed and continued to strive towards her goals. However, during the course of 4th grade, a group of students found out that Yuuki was a carrier of HIV and began spreading rumors about Yuuki. Because of this, Yuuki was forced to transfer to another school. After transferring to a new school, Yuuki's condition gradually became worse and the reason suspected by her doctor was from the rejection caused by the parents and teachers of her old school. Her parents died two years later, and her sister the year before the events of Sword Art Online and ALfheim Online.

Mother Rosario
She is first introduced as Zekken, a street swordsman offering an 11-hit Original Sword Skill, to whoever beats her. After fighting through a sixty-seven battle win streak, she is challenged by Asuna. Although Asuna loses, Yuuki is impressed and thus asks Asuna on behalf of everyone in her guild for her help in defeating the floors' boss. Asuna readily agrees. The first attempt at defeating the floor's boss was unsuccessful, but after backup support on the second try, the Sleeping Knights beat the floor. As time progresses, Asuna gets to know Yuuki in the real world. She even goes to great lengths to ensure that Yuuki can enjoy the "real" world again by asking Kirito to help her with the technology that he had been developing in school. Yuuki, through Kirito's camera, was able to enjoy the school at the SAO victim's school. Unfortunately, her condition gradually worsened, but as she slowly died in Asuna's arms, Kirito and many players of the ALfheim virtual world surrounds her, and she passes away in happiness.

Skill/Abilities

 * High speed reaction
 * 1-handed Sword Skill
 * Mother's Rosario: 11-hit Original Sword Skill

Trivia

 * Yuuki also acknowledged Kirito as being as strong a player as Asuna, yet she didn't ask for his help because he had discovered her secret as a user of the MediCuboid.
 * Kirito claimed that if Yuuki had played SAO, she would have been the one to recieve the Dual Blades skill, as her reaction speed was greater than even Kirito's.
 * As a MediCuboid user, she was one of the few people who had more playtime than the "survivors from the SAO incident", having logged on for over three years online.
 * In the chapter 10 of light novel volume 07, joking, she proposed marriage to Asuna and told her that Asuna would have to join Yuuki's family, because if Yuuki joined Asuna's family she would be named Yuuki Yuuki (Yuuki is also Asuna´s lastname).