In the novel number9dream, Ran Sogabe is the fake name with which Eiji Miyake introduces himself to Ice Maiden in PanOpticon’s lobby, in what turns out to be an elaborate fantasy scenario imagined by Eiji Miyake while drinking coffee at the Jupiter Café. Eiji introduces himself as Ran Sogabe,  a “Goldfish Pal” who has come to PanOpticon to service the aquarium of the law firm Osugi and Bosugi, which he refers to as Osugi and Kosugi. In this way, he hopes to gain access to the offices of Osugi and Bosugi and confront his father’s lawyer, Akiko Katō.