name: aru katsumoto
squad: captain of the secret squad
zampaktou: 'scatter shadow kuyatako', a giant iron thorn ridden sword which is known to amplify reitsu levels.
bankai: with a simple thrust into the ground, iron weaver strangle grabs ahold of its opponent and drags then into their stoney tomb. can also be used as a whip.
personality: quiet and calculating, cold hearted and sinister
looks: tall, tan, long white hair and a scar over the left eye.
history: once was a hollow but ascended into a vasto-lord, the details of his origin is unknown but believed to be the first recruited by aizen-sama and gin.
goals: other than to fight to gain strength and a decent opponent worthy of such strength, basically unknown.