Kato is calm and not very talkative, mostly just staring at people upon first interaction. This creeps guests out a lot. He's on good terms with Eclipse, but Sun and Moon hate him. Especially Moon. Toby isn't very fond of him either, most because they don't interact much.
Kato mostly performs at the Serenity Garden/Spa. Careful with each step, he mesmerizes the on lookers with calming, and almost hypnotic, dances. He hates loud noises, so discourages applauds for his performances. He will sit motionless for hours just to mess with people. He is reserved and observant, almost like a judgmental cat watching your every move.
In his spare time he likes to read, watch the kio in the Serenity Garden(which he takes excellent care of and has names for each of them), and, of course, messing with guests.
Ruin Totality idea/concept
The idea in which Totality would lose the ability to see while surviving in the ruins of the pizzaplex. Thinking everything that moves is a threat or another hostile animatronic. He would be in this sensitive state for so long that his protocols would act out at the slightest sound for his own protection. That was until Y/n ventures into the pizzaplex to find him specifically. A longtime and former employee who oversaw Totality while the plex was still going. but when they do stumble upon him, Totality fights them. They try to talk to him, break him out of his fight, something, but it's no use. Years upon years of having his protocol to rely on, everything is muted but the sounds of his warning systems to eliminate the threat before him. Nearing on the brink of death between them and Totality, they try one more thing; Physical contact. That is when he finally freezes. Animatronics are not warm, not naturally. Human warmth is ever softer and not as rigid. He lays his had on them in confirmation that its not fake and tries to figure out who it exactly is, trying to find any mark or scar they had that he can remember on their body (In this case, it's near their collar bone). When he finds it, he breaks. His voice box is static as he tries to form countless apologies to them that are not understandable before opting to carefully grapple them in a tight yet careful hug.
Man, I can't make a new character and leave them alone for 3 days without having heart-wrenching angst huh.