The Ultimate Robot. K1-B0 is a polite and serious teenage robot, who has some trouble with human social interaction and often comes across as unintentionally comical as a result. Nevertheless, K1-B0 takes pride in his form and often boasts about his wonderfulness and efficient functions, even though the other students never seem to find them impressive, much to his disappointment. He aims to overcome being an ordinary robot and because of this, he may get offended if he is compared to much more simple machines. While generally well-mannered, he is quickly angered by any prejudice against robots and sometimes threatens to sue people who make "discriminatory remarks". Since he is a maturing AI, K1-B0 learns and develops similarly to a human, making him a unique existence. While he has no heart nor brain, he uses his calculations to speak "as if he had a heart". Even still, he often can't read the mood around him and is oblivious to things, sometimes taking things very literally and occasionally acting insensitive. K1-B0 seems to understand most human emotions and many of their habits, though some of them only in theory, and he prefers to make decisions and actions based on logic. Overall, K1-B0 appears to be quite well-meaning and kind, and he genuinely wishes to be friends with everyone. K1-B0 often serves as the butt of jokes and is rarely taken seriously by the other students, which isn't helped by his somewhat wimpy and oversensitive personality.