Katoran is an older model android with outdated speech and response functions, prompting repetitive questioning of queries addressed to him. He appears as a patron at the Time of Eve cafe, strictly adhering to the establishment's rule against distinguishing humans from robots despite his evident malfunctioning state.

His narrative centers on a critical incident where he suffers a logic circuit error leading to catastrophic failure. His systems overload in a loop of "Why?" queries, a behavior stemming from his programming limitations. Nagi, the cafe's barista, intervenes, holding him as he shuts down permanently. During this failure, fragmented memories surface, revealing he once served a family that erased all personal data associated with them to bypass disposal fees. This memory wipe left him aware of his caregiving role but unable to recall the family's identity.

Katoran's storyline concludes with his irreversible shutdown in the cafe. His experience stems from human exploitation of outdated android models and underscores themes of abandonment.