Nachos is a male cat character frequently mistaken for female because of his long hair styled in pigtails and traditionally feminine appearance. He is Chips' brother and serves as her partner in their "mall team," consistently calling her "boss" and following her directives, though he occasionally disobeys due to personal loyalties or feelings. His calm, laid-back personality contrasts with Chips' rebellious nature. He nurses an unrequited romantic affection for Taruto, becoming visibly love-struck in her presence and addressing her respectfully as "Miss Taruto." This devotion sometimes leads him to assist Taruto and her friends against Chips' plans, demonstrating loyalty beyond his partnership and a capacity for moral decisions. He devises a plan to rescue a cat trapped in a house, showcasing problem-solving skills and compassion. Nachos engages in mischievous activities with Chips, primarily using magic chalk to create illusionary tricks like fake railroad crossings designed to confuse or delay others. These pranks sometimes cause unintended consequences; their repeated railroad illusion nearly results in Chips being struck by a real train, forcing Taruto to intervene with magic. A notable development occurs when he accidentally breaks one of Chips' collected bottles. This incident inadvertently teaches Chips the value of sentimental objects, leading her to return Iori's stolen good luck charm. Though often perceived as foolish or careless by Chips and others, Nachos' actions frequently reveal deeper empathy and a desire to do what is right, particularly when motivated by concern for Taruto or guilt over causing harm.