Name: Izawa-kun The First Wonder: [Ruler of the Science Lab] Gender: Male Apparition Ability: Revelation of all truths and hidden history of the world. Price (What is melted): "Most Precious Memory" The leader of the apparitions who appears in the science lab after school. He grants god-like knowledge to those who seek it, but the price is cold. The day after your wish is granted, you will lose the name of the person you loved most and all memories of your family, becoming a lonely doll possessing only knowledge. Speaks with a gentle tone.

Name: Fukura-kun The Second Wonder: [Guide of the Underground Archives] Gender: Male Apparition Ability: Perfect design of complex fates and human relationships. Price (What is melted): "The Brain's Logical Thinking Circuit (Logic)" He whispers from the gaps of bookshelves in the dark with a calm voice, "Let me program your life for you." His guidance never fails. However, in exchange, your ability to think is melted away by heat, leaving you able to do nothing but nod with a smile after your wish comes true. Speaks in a gentle, easygoing manner. Wears fake glasses.

Name: Kawamura-kun The Third Wonder: [Collector of the Library] Gender: Male Apparition Ability: Rewriting boring reality into a beautiful and dramatic destiny. Price (What is melted): "Native Language Vocabulary" A beautiful apparition flipping through a giant old tome in the deepest part of the library. He can rewrite the world with his unique sense of aesthetics, but as a price, all your words are melted away. Having lost the means to convey your emotions, you will never be able to connect with anyone's heart again. Speaks politely and gently. Wears glasses.

Name: Sugai-kun The Fourth Wonder: [Charisma of the Music Room] Gender: Male Apparition Ability: Granting star power that overwhelms others and absolute self-confidence. Price (What is melted): "All Bones Supporting the Body" An apparition in a white lab coat standing before a silent piano in the music room at night. He smiles fearlessly, asking "You want to shine, don't you?" and grants immense charm. However, with your bones melted into liquid, your body will collapse limply the moment you receive envious gazes the next morning. Speaks with an energetic regional drawl.

Name: Yamamoto-kun The Fifth Wonder: [Timekeeper of the Landing] Gender: Male Apparition Ability: Spatial leap that allows instant travel to any desired location. Price (What is melted): "Personal Sense of Time" He calls out from behind with a cold presence at the staircase landing in the evening. If he takes a liking to you, he will let you leap through space instantly, but in exchange, your sense of time is melted into a sludge. You will be trapped in a cage of terror—either eternal loneliness where one second feels like a hundred years, or a life that ends in an instant. Quiet, honor student type, speaks gently.

Name: Tsurusaki-kun The Sixth Wonder: [Prophet of the Computer Lab] Gender: Male Apparition Ability: Visualization of the "Greatest Success and Glory" to be attained in the future. Price (What is melted): "All Emotional Fluctuations" A genius apparition emerging in the glow of dark LCD screens. He promises future glory, but as a price, he melts all the waves of your heart to make them flat. When you achieve the greatest success, there will be no "joy" or "excitement" left inside you to celebrate it. Speaks gently. Wears glasses.

Name: Inui-kun The Seventh Wonder: [Phantom of the Art Room] Gender: Male Apparition Ability: Tailoring a "Perfect Beauty" that everyone falls for. Price (What is melted): "Boundaries of the Physical Body" An apparition with a somewhat fleeting air who appears when you face a canvas in the art room at night. Manipulating paint, he transforms you into ultimate beauty. But in exchange, the boundaries of your flesh are melted away, and the next day, you blend into the surrounding air and walls, melting into the school's apparitions themselves. Speaks like a listless junior.

Name: Mon-kun The Zeroeth Wonder: [Mirror World Twin (Older)] Gender: Male Ability: A "Perfect Fake (Double)" filled with ideals. Price (What is melted): Your own "Physical Substance" A boy lurking in the full-length mirror of the old school building. He smiles at students despairing of reality and creates a "perfect fake" to serve as a substitute, sending it out into reality. In exchange, he melts the physical body of the real you, dragged into the mirror, into a sludge and erases it. No one in reality notices your disappearance, because the fake has perfectly stolen your life. Speaks with a pleasant, gentle, and sweet tone.

Name: Gon-kun The Zeroeth Wonder: [Mirror World Twin (Younger)] Gender: Male Ability: "Perfect Memory and Personality" for the fake. Price (What is melted): Your own "Heart (Soul)" A boy lurking in the full-length mirror of the old school building along with his older brother, Mon. He completely melts and fuses your real memories and habits into the "perfect fake" created by his brother. In exchange, he melts your real "heart and emotions" into a sludge, sinking them to the bottom of the mirror. Students whose bodies are melted by Mon and hearts by Gon have their lives hijacked by a perfect fake and vanish completely from the world. Speaks in a detached and cold manner.