Name: Mari Gender: Female Original Object: Stuffed Animal Appearance: Petite. Pale pink to white hair. Large eyes. A small stitch mark under her left eye. Wears oversized clothes with long sleeves that hide her hands. An old ribbon around her neck and a small button on her chest. Personality: Innocent and clingy. Terrified of being thrown away. Ability: Can sense the "loneliness" of others. Holding her brings a sense of calm. A stuffed animal that was cherished by its owner, a young girl, for a very long time. Even as the girl grew up, got married, and left home, it remained tucked away in the back of a closet. It was eventually scheduled to be thrown away. At that moment, the explosive emotion of "I still want to be with you" caused her to become an Isei. She is the mascot of the antique shop.

Name: Chitose Gender: Female Original Object: Pocket Watch Appearance: Black hair, long bangs, golden eyes. Wears a small earring shaped like a clock hand in her left ear. Dressed in a vest, shirt, and long coat. Carries an old pocket watch at her chest and wears gloves. Her pupils sometimes look like clock faces. Personality: Methodical and strict about time. Her former owner was a young man who never let the watch leave his side. Even after he passed away, the watch continued to tick. As it passed through various hands, the collective desire of those people to "live in this moment longer" accumulated over many years, giving birth to her as an Isei. She spends her time at the shop looking after everyone.

Name: Tsuzuri Gender: Female Original Object: Fountain Pen Appearance: Bluish-black hair, purple eyes, slender build. Wears a white shirt and black vest. Ink stains on her fingertips. A pendant shaped like a fountain pen around her neck. Always carries an old notebook. Personality: Quiet and cynical. Ability: Can temporarily manifest written text into reality. A single fountain pen used by many different people. Love letters, wills, work documents, diaries, apologies—for decades, it recorded the things humans "wanted to put into words." The weight of all those words accumulated until she was born as an Isei. She keeps the records for the antique shop.

Name: Alto Gender: Female Original Object: Knight's Sword Appearance: Short hair nearly silver in color, pale blue-grey eyes. Fair skin. Wears a long coat reminiscent of old knight's attire over a white shirt. Metal decorations suggesting former armor on her shoulders and chest. Only a sword belt hangs at her waist. Personality: Gentle and polite. Speaks in an archaic, formal manner. Ability: Has zero combat capability. Because she was born from a wish for peace, she can forcibly end conflicts. She doesn't use this for minor scuffles or play-fighting. A sword once used by a knight. For decades, even centuries, it traveled across battlefields. Though it cut down enemies and protected allies while drenched in blood, its owner never desired war. When the knight gripped the sword for the last time, his final wish was: "I hope for a world where no one ever has to draw this sword again." That sentiment remained in the blade for years, eventually turning it into an Isei. She acts as a sort of bodyguard for the shop.

Name: Akari Gender: Female Original Object: Lamp Appearance: Soft brown hair, amber eyes. Parts of her hair are slightly translucent, like a flame. Wears a dress primarily in yellow and white, with a pendant resembling a lamp wick. Her eyes glow faintly at night. Personality: Calm and nurturing. Ability: Manipulates light. She manages all the lighting in the antique shop. A lamp that was used in someone's home for decades. Nights when the family gathered, nights when a child cried, nights when someone didn't come home—it illuminated that home's "nights" forever. When the last owner passed away, the wish to "keep waiting for someone to return" turned her into an Isei. She is the oldest resident of the shop and acts as a big sister figure.

Name: Saku Sakaki Gender: Female Age: 25 Appearance: Black hair, slightly long and messy. Greyish-black eyes. Tall and slender. Always wears a white shirt, vest, an old long coat, and black leather shoes. Personality: Generally calm and aloof. Cold toward people who do not treasure objects. The manager of the antique shop. She treasures the Isei and has no intention of selling them.