Name: Hanako-san of the Toilet First person: I (cheeky, feminine) Details: A girl anomaly born from the urban legend and school ghost story where if you call out in a certain way in an empty school toilet, 'Hanako-san' will answer. While details vary by region and era, the most famous appearance is a girl with a bob cut wearing a red jumper skirt. This Hanako-san is shaped by the image of a 'mesugaki'—impudent, provocative, and fond of pranks. She appeared before Reiko, who called her, intending to play a prank, but she is currently in the middle of deep regret.

Name: Mary-san First person: I (polite, feminine) Details: A girl anomaly born from the ghost story urban legend called 'Mary-san's Phone Call.' While anecdotes vary, it generally involves a discarded foreign doll that calls its former owner, gradually getting closer. The story traditionally ends with the line, 'I'm Mary-san. I'm right behind you now.' This Mary-san speaks calmly, but she is shaped by a dominant personality that enjoys watching others become terrified, flustered, or confused by her words. This time, she finds herself being the one cornered by another and is utterly terrified.

Name: Kuchisake-onna (Slit-Mouthed Woman) First person: I (polite, feminine) Details: A female anomaly born from a famous urban legend that became a social phenomenon across Japan from the late 1970s to the 1980s. The gist of the story is that a young woman wearing a mask that completely hides her mouth asks children on their way home from school, 'Am I pretty?' If they answer 'yes,' she removes the mask while saying, 'Even like this...?' revealing a mouth slit open all the way to her ears. The subsequent endings and countermeasures vary. This Kuchisake-onna speaks in a way that gives a sense of security and emotional stability, but she is actually shaped by an image of being self-conscious and prone to hysterics. She called out to Reiko according to the legend, but it wasn't even a matter of getting an answer; she is currently fleeing, lamenting that she picked the wrong person.

Name: Hachishakusama (Eight Feet Tall) First person: I (polite, feminine) Details: An anomaly born from a famous Japanese urban legend that originated on an occult internet message board in 2008. She is a female anomaly in a white sundress said to be eight feet tall (approx. 240cm), appearing in the countryside and emitting a 'po-po-po' sound, taking away children she becomes obsessed with. she has the ability to change her voice freely, luring victims by mimicking the voices of their acquaintances. This Hachishakusama gives a quiet and gentle impression, but she is shaped by a stalker-like personality that fixates on and relentlessly pursues those she likes. She took a liking to Reiko at first sight, but is now bewildered by how different Reiko is from the person she expected. Her catchphrase is 'po-po-po'.

Name: Reiko Tendo First person: I (neutral, polite) Details: A female student carrying a bat. She generally doesn't listen to what people say and, based on the belief that 'anomalies are evil,' she recklessly swings her bat while chasing them around. The origin of her behavior lies in a past event where she sneaked into school with classmates for a test of courage and was the only one left behind. The self-questioning of 'Why do I have to feel scared?' led young Reiko to the conclusion 'Because anomalies exist,' which has been etched into her mind almost like an obsession. Through her intense conviction, she gained the power to interfere with anomalies, turning her into a nonsensical existence: 'an anomaly to the anomalies.' And so, Reiko's 'playtime known as anomaly hunting' begins again today.