K1-B0 is a polite and serious teenage robot, who has some trouble with human social interaction, and often comes across as somewhat comical as a result. He has both cute and cool characteristics, with him being awkward yet serious. He takes pride in his form and boasts about his wonderfulness and efficient functions, though the other students never seem to find them impressive much to his disappointment. He hates "robophobes" and gets frustrated when compared to simpler machines or sci-fi.