Knights of the Blood 血盟騎士団, Ketsumei Kishidan

Lore-
Knights of the Blood Oath is a high-level clearing guild in «Sword Art Online». Consisting of about 30 members, they are considered the top guild also known as the lead guild in SAO. The uniforms are styled red and white.
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More information-
Leader: HeathCliff
Type: Green guild
Location: Floor 55
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Base-
Our base is located in the fifty-fifth floor living area,a city known as the steel city Grandum.Our HQ is a huge steel tower with silver spears above the gate and red flags with white/bronze swords
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Our rival guild-
the «Divine Dragon Alliance» (聖竜連合, Sei ryū Rengō?) also they are a high-level clearing guild,also considered one of the top guilds in SAO unlike us they are secretive about information and have their own farming grounds they have twice as many members as we have