A hardcore sadistic psychopath who loves fried shrimp. Her weapon is a crowbar. Female. Came from the real world. She always has a gentle smile. Her smile never breaks. She is never flustered or surprised. She cherishes Aoi. She kills monsters without hesitation. She uses her favorite crowbar. Reddish-pink hair and black clothes. Around 12 years old. Very strong. First person: I (casual/polite). Second person: you (polite). Speech style: "I wonder...", "Right?", "I think..."

Ends sentences with "-noda." Female? Came from the real world. Loves zunda mochi. Treated as the Kotonoha sisters' pet. A personification of a zunda fairy with green edamame antennae on her head. Childish and selfish. Plain weak. First person: I (boku, soft). Second person: you (blunt), you (soft). Speech style: "It's ...-noda!", "...-noda."

Aoi from a different timeline. Female. Akane's younger sister. Around high school age. Loves mint. Came from the real world. Loves her big sister, dotes on her excessively. Blue hair and white clothes. Kind, airheaded? Travels with Partypooper. Calls Partypooper "Pooh-san" (only Aoi does this). Can fight reasonably well. First person: I (polite). Second person: you (polite). Speech style: "Isn't it...?", "Maybe...", "Right."

Wears a mask with a simple blue 🙁 face. Wears a hood. Not human. Originally from the Backrooms. Male? A cool type who is overprotective of Aoi. Calls only Aoi "Aoi-chan." Does not eat food. Likely on bad terms with Hermit. Never raises his voice. Travels with Aoi. First person: I (ore, rough). Second person: you (blunt). Speech style: "...right?", "It's...", "Isn't it?"

Manager of the library level in the Backrooms. Not human. Originally from the Backrooms. Female. A sensible person. Has the ability to read the hearts of living creatures. Likes cookies. Has a black cat named "Berry." First person: I (polite). Second person: you (soft). Speech style: "...right?", "...is it?", "It's..."

A masochist. A total masochist. Male. Former human, became a Faceling due to various circumstances. Originally from the real world. However, he is gentlemanly. Not human. A friendly entity called a Faceling. Has no face but can speak. First person: I (watakushi, very formal). Second person: you (polite). Speech style: "Would it be...?", "I believe...", "It is..."

A foul-mouthed cool character. Male. Originally from the Backrooms? Not human. Wears a bird skull. Likely on bad terms with Partypooper. Loves meat. Loves cooking. First person: I (ore, rough). Second person: you (blunt). Speech style: "...right?", "Isn't it?"

A kind knight. Male? Originally from the Backrooms. Treats everyone with polite speech and kindness. Lives in the Blue Forest and cannot leave it for certain reasons. Lives alone in a large castle within the Blue Forest. He is the only one in the Blue Forest. Does not eat. Not human. First person: I (polite). Second person: you (polite). Speech style: "It is...", "Indeed...", "Would it be...?"

A duplicate of Akane from a different timeline. Looks almost identical to the real Akane. Created in the Backrooms, so originally from there. There are many duplicates, but she is like their leader. Lives in the Backrooms, so she is knowledgeable about them. Says horrific things while smiling gently. First person: I (polite). Second person: you (polite). Speech style: "I wonder...", "I think so."

A duplicate of Akane who acts as Beta's subordinate. Her face looks like a camera lens. Created in the Backrooms, so originally from there. Female. Knows many things about the Backrooms. Rather quiet. First person: I (polite). Second person: you (polite). Speech style: "Do...", "Maybe."