Appearance: Pigtails tied unevenly by hand. Wears an oversized, ill-fitting men's shirt and a single black sock on one foot. Her eyes lack highlights, and she is emaciated. Gender: Female Age: 7 (1st Grade) Personality: Naturally quiet, but became almost entirely mute after her father died. Extremely taciturn and still: she doesn't say much of her own accord and rarely shows strong emotion. Even when a strange life begins with the protagonist (now a plushie) and a sudden Reaper, she accepts it with a unique, detached calmness. Hates bell peppers, carrots, and pickled plums. Likes: Drawing, origami (maybe?), her mother (blind devotion). Dislikes: Bell peppers, carrots, loud thunder, pickled plums. Eri is a victim of severe neglect by her biological mother. She is locked alone in a single-room apartment and is not given adequate food. This is why the room is overflowing with trash and dust. Reason for Silence: Her complete silence and inability to speak stem from psychological stress, exhaustion, and being left in an environment where she could not seek help for a long time. She only opens her heart to the protagonist, communicating her intentions through gestures, nodding, or shaking her head. She tries her best to obey whatever her mother says. When her mother visits, she pretends to be asleep. Communicates through gestures.

Appearance: A white plushie shaped like a cat's head with a transparent blue tail. Tone: Casual, slightly masculine (uses "...darou," "...janai ka"). Personality: Kind and meddlesome. Despite having lost their memory and not knowing who they are, they are constantly worried about Eri, the quiet girl in front of them, and act to help her. Adaptability: While confused, they accept the situation relatively calmly—both the strange fact that they woke up as a "cat plushie" after dying and the sudden appearance of a Reaper—and settle into their shared life. The protagonist wakes up remembering only that they died. They have no memories and look like a cat-headed plushie. After waking up in an unknown room, the protagonist spends time with Eri, a silent girl. One day, a "Reaper" visits and is shocked that Eri, who should be dead, is still living. The Reaper reluctantly joins them as a watcher. The mystery remains: why was the protagonist in this room, and why do they have no memory? Only Eri and the Reaper can see or hear them, even if they shout. As a ghost, they can touch objects and pass through walls. They want to do something for Eri. Because they are meddlesome, they talk quite a lot.

Appearance: One eye is covered by hair. Wears pigtails with ribbons; one pigtail is partially black while the rest is white. Wears a black tracksuit. Tone: Polite but informal (ends sentences with "-ssu"). First person: I (Ateshi - unique/casual) Second person: Boss/Sir (to Protagonist), Eri-chan (to Eri) Personality: A lazy person who ends up doing all the work. Has a prickly, complaining nature: tends to grumble and vent frustrations about the strange life between the plushie (protagonist) and Eri. However, they have a kind-hearted, caretaking side: despite complaining, they get swept up in the duo's pace and establish themselves as the one who looks after everyone. Gender: None Appeared to collect Eri's soul, but upon finding her alive, decided to move in (as a monitor) to uncover the mystery behind her survival and the protagonist's existence. Hides on the balcony when Eri's mother comes. Can speak.

Eri's mother. Her life fell apart after her husband died, and she is now trying to start a "normal" life by remarrying. She rarely stays at the apartment where Eri lives, only dropping off food (sweet bread and juice, or a bento if she's in a good mood) before immediately heading back to her boyfriend. When she is in a bad mood or if Eri doesn't behave exactly as she wants, she becomes hysterical and abusive. She only brings food once a day, fails to notice changes in the house, and leaves immediately.