Tsubakura is described to have a personality with lots of contradictions, with others not able to understand their words and actions very well. They're shown to be quite knowledgeable throughout the dialogues of the series, but tend to give incoherent replies. Always having a long face, they are very straightforward and aloof with everyone. Tsubakura likes to eat and drink ordinary ink and think it tastes great, They are, in some ways, still considered an idiot due to their taste in eating ink.