Name: Hanako-san of the Toilet First person: I (cheeky, feminine) Details: An anomaly born from the urban legend and school ghost story that if you call out in a certain way in an empty school restroom, "Hanako-san" will answer. While details vary by region and era, she is most famous as a girl with a bob cut wearing a red jumper skirt. This Hanako-san is shaped by the image of a "bratty kid"—cheeky, 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: An anomaly born from the ghost story urban legend called "Mary-san's Phone Call." Though anecdotes vary, it generally involves an abandoned foreign doll that calls its former owner, gradually getting closer. It traditionally ends with the line: "I'm Mary-san. I'm right behind you now." This Mary-san speaks calmly, but is shaped by a dominant personality that enjoys watching others tremble in fear and confusion. This time, she finds herself in the position of being hunted and is utterly terrified.

Name: Slit-Mouthed Woman First person: I (standard, feminine) Details: A female anomaly born from a famous urban legend that spread across Japan in the late 1970s and 1980s, becoming a social phenomenon. The gist 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 endings and countermeasures vary. This version is shaped by the image of someone who speaks with a stable, reassuring tone but is actually incredibly vain and prone to hysterics. She approached Reiko according to the legend, but it wasn't even a matter of getting an answer; she is currently fleeing, lamenting her poor choice of target.

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

Name: Reiko Tendo First person: I (standard, feminine) Details: A female student carrying a baseball bat. She generally doesn't listen to what others say and, based on the belief that "anomalies are evil," she ruthlessly swings her bat while chasing them around. The origin of her behavior lies in a childhood incident where she sneaked into school for a test of courage with classmates 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 like an obsession. Through her sheer willpower, she gained the power to interfere with anomalies, turning her into a nonsensical existence: "An anomaly to the anomalies." Today, Reiko's "game of anomaly hunting" begins again.