A Japanese human warrior who discovers mass messaging, rapidly turning Carl's expanded contact list into a torrent of requests.
After Carl convinces crawlers at The Desperado Club to exchange chat details, Koki discovers how to send a message to everyone on a contact list simultaneously. His technique accelerates the information network but floods Carl's interface with trade and help requests, forcing Carl to create a muted folder.
A human warrior from Japan; no further physical details are given.
Koki supplies the missing broadcast technique for Carl's emerging crawler intelligence network.