Board Thread:Speculation House/@comment-24.93.195.246-20141027020600/@comment-4010415-20160127232229

74.58.211.58 wrote: She does not have a family name either and might be the only one in this situation. Neither did Adam, Penny, Emerald, Mercury, Scarlet, Sage, Coco, Fox, and Yatsuhashi.

They just have a habit of only thinking of some characters' first names and then putting off their family names until later.

The writers told us the first names of Adam, Emerald, Mercury, Scarlet, Sage, Coco, Fox, and Yatsuhashi, and we learned Penny's first name in Volume 1, and then after that, it took a long, looong while for them to tell us those characters' family names because they were still thinking of them. For example, they got JJ Castillo's input on what Mercury's family name should be, even after they'd chosen him to voice Mercury.

They probably just haven't thought up Neo's family name (or they have and haven't felt like telling us yet), especially since Neo was made up at the last minute because Monty felt that Roman needed an assistant.