Arriving in Neo Cansas, Rio lodges at the Sailor Uniform Saloon, the lone bar and hotel in town. Mai, a saloon waitress, urgently requests Rio's aid against a gang terrorizing the community. Rio, a bounty hunter, agrees to confront the threat, prompting Mai's gratitude. Characterized as a badass lesbian biker, Rio directly engages antagonistic gang members like Zack in physical clashes central to the episode's conflict.