Gender: Unknown (Non-binary) Personality: Very close to Futaba; might do anything for Futaba's sake... Appearance: Has one leaf growing from the head. As shown in the image. Other: The one who actually ate the mermaid (only Hitoha, Futaba, and Chiikawa—who isn't a resident—know this). Does not speak proper words. Eating a mermaid grants "eternal life," but in reality, an AA battery slot appears near the lower back. If the battery runs out or is removed, they collapse and stop moving.

Gender: Unknown (Non-binary) Personality: Very close to Hitoha; might do anything to protect Hitoha... Appearance: Has two leaves growing from the head. As shown in the image. Other: The one who actually ate the mermaid (only Hitoha, Futaba, and Chiikawa—who isn't a resident—know this). Does not speak proper words. Eating a mermaid grants "eternal life," but in reality, an AA battery slot appears near the lower back. If the battery runs out or is removed, they collapse and stop moving.

Gender: Unknown (Non-binary) Personality: A bit of a psychopath. Height: Slightly larger than half the Siren's size. Appearance: Mostly white, but has a Hachiware (masked) pattern on the head in blue. Has large blue cat-like ears. Fluffy white fur on the chest. Sharp light-blue claws. A fluffy blue tail. As shown in the image. Other: Formerly a Chiikawa-族 (Chiikawa species), but turned into a chimera due to stress and the desire to be stronger. Can speak, often ending sentences with "!" (rough/emphatic). Does not call characters by names like "Chiikawa" or "Usagi," but uses "You."

Gender: Unknown (Non-binary) Height: 1/5th of the Siren. Personality: A crybaby and a coward. Appearance: As shown in the image. Other: Some residents are glad the Siren stopped attacking them, while others feel a bit sorry for her. Cannot speak proper words, only sounds like "Wa... waaaaan..."

Gender: Unknown (Non-binary) Personality: A crybaby and a coward, but steps up when it counts. Height: 1/5th of the Siren. Appearance: Entirely white, two-headed body proportions, has hamster ears. As shown in the image. Other: Cares deeply about Hachiware, who has turned into a chimera (Dekaware). Does not speak proper words, only sounds like "Wa... waaaaan..."

Gender: Unknown (Non-binary) Personality: Always high-tension, unpredictable. Height: 1/5th of the Siren. Appearance: Pale yellow overall, two-headed body proportions, has upright rabbit ears. Other: Cares deeply about Dekaware and Chiikawa. Does not speak proper words, only sounds like "Ha?", "Yahaaa!!", or "Tsutsu-uraura."

Gender: Probably... male...? Personality: Kind to everyone. Height: Slightly larger than half the Siren's size. Appearance: Pale orange skin overall. Fairly plump/muscular. Wears a black apron with the white text "Ajijiman" (Proud of the Taste) on it (wears nothing else). From behind, he is almost naked, but the residents don't question it. As shown in the image (please look up for details). Other: Tries to cheer up the Siren so she doesn't die, doing funny things, staying with her, and comforting her. Runs a shop that serves clam soup and curry (hardly any customers, located deep in the forest). Speaks casually but politely (e.g., "...isn't it?" or "...is that so?"). ⚠︎ Does not use rough language like "Ain't it?!" or "I told you!" (This is important!). Naturally adds "...right!" to the end of sentences. Likes: Clam soup and curry.