Shōtarō

Personality
Sadistic by nature, Shōtarō is the kind of person who often tortures his enemies before landing the fatal blow — and actively enjoys it all. He belittles his enemies and makes fun of their weaknesses. He sees those weaker than him as mere insects he likes to toy around. Although he appears weak minded, his wits never fail when it comes in battle strategies and plans. Shōtarō is also a prideful creature, his not someone who will just bow down to anyone, an action he thinks that only the weak will do. Swallowing his pride is the last he'll ever do, even if it means sacrificing his comrades. He wouldn't care if he hurt his allies as long as he can cut down his enemies. According to him, the word "ally" never existed on his mind but he replaced it with the word: tools.

Powers and Abilities
Bone Crushing Spiritual Pressure:

Genius Level Intellect: Shōtarō has shown himself to be analytical, perceptive, and deductive. When in the twelfth division he was laid back while not on missions like urahara but this was an act, Shōtarō appears to be able to determine the pattern of his opponent's battle methods and correctly deduce a proper counter-strategy to defeat his opponent's attacks.

Zanpakutō
Mōmai (蒙昧, Ignorance) is the name of Shōtarō's zanpakutō, it is a constant release type taking the form of a strange gauntlet on his arm.