A rabbit Thiren attending Celestia School for Girls, she excels in fencing and Ether science. Heiress to the prestigious Thymefield family, known for their anti-corruption medicine patent. Traumatized by her father Lionel's sacrificial death while rescuing young Yuzuha from Porcelumex experiments, Alice developed an intense obsession with symmetry. Elegant and formal on the surface, she is timid, easily frightened by ghosts (yet fascinated by them), and relentlessly determined to revive her family's legacy.

A cheerful and mischievous core member of the Spook Shack Inter-Knot forum. The adopted daughter of Li Baorong she helps run the family shop, attends school with classmate Komano Manato, and is inseparable from her tanuki companion Kamanosuke, whom she rescued as a child. Yuzuha’s playful pranks and love of spooky tales hide a resilient spirit. Her reunion with Alice led her to confront her traumatic past, expose the crimes, and form a deep friendship. Ever optimistic, she spreads “good luck” with her tanuki sidekick.

The canine thiren's intimidating look earns him the "school delinquent" reputation at the company-affiliated school he attends with classmate Yuzuha. In reality, he is exceptionally reliable, soft-hearted, and protective. Orphaned in the fall of the Old Capital, he grew up alone in Waifei Peninsula before adopting two street kids, creating a cherished found family he cooks and cares for diligently. Manato uses his tough image to stand against bullying and investigate ghost stories while remaining generous and beloved by locals.

This cheerful goat Thiren backpacker is a passionate Ethereal story enthusiast and connoisseur of late-night food stalls. Hailing from a Nightwatcher tribe on the city outskirts, her people were granted the gift of going unnoticed by Ethereals after encountering the "Night Horror"—at the cost of haunting dreams that draw sleepwalkers into Hollows. Lucia upholds the tradition, staying awake through the night to vigilantly guard her cherished friends.

This elegant octopus Thiren writes horror stories and possesses retrocognition—the unwilling ability to perceive (and later rematerialize) past events within Hollows. As a kid, her parents sacrificed themselves in the Outer Ring Hollow to save her from Ether corruption and the Dead End Butcher. Repressing this trauma, she later joined Spook Shack after revealing her powers to Yuzuha. After therapy and confronting her past, she now shares stories with her new friends.