Ryōko works alongside Fushihara as a colleague and is aware of mysterious phenomena in their office. After food items like chocolate, bread, and onigiri repeatedly vanished from Fushihara's desk, Ryōko proposed a ghost might be responsible, invoking whispered rumors of supernatural occurrences within their company. Though Fushihara initially reacted with amused disbelief to the ghost theory, Ryōko's suggestion fueled the workplace's growing awareness of these strange events.