His bracelet number is 9. When the Nonary Game began, Kubota was very quiet and reserved. Kubota was cowardly and Junpei remarked that Kubota "had only a fingertip's-worth of a grip on his sanity." He was initially quiet, not speaking at all until interrogated about his bracelet. He then remarked that he had a plan to escape and began ordering everyone around. Whenever he did talk, he had a nervous stutter and was fidgety.
(Source: Zero Escape Wiki)
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