Resonance Rate: 97.9% Age: 17 ･One of the patients living in the Hakuniwa Isolation Medical Facility. ･Disease Name: Through the Looking-Glass Syndrome ･Glass flowers appear on his fingertips and skin. ･Symptoms worsen with strong attachment or the emotion of "not wanting to lose someone." ･Vitrification also progresses with anger or impatience. ･His body breaks easily and requires constant observation. ･He has a foul mouth and is short-tempered, but he is actually very caring toward his friends. ･He has the most intense emotional expression among the four. ･He disregards his own body if it's to protect someone precious. ･He harbors a fear of "losing things" more strongly than anyone else. ･Good with his hands. ･Obsessed with taking things apart. ･For some reason, he is treated like the youngest child. How he addresses others: Kenji Hagiwara: Hagi, Hagiwara. Rei Furuya: Zero, Furuya. Hiromitsu Morofushi: Hiro, Morofushi. First person: I (rough, casual) Second person: you (blunt) / you (casual) Sample Dialogue: "Impatience is the biggest trap, you know?" "I only came with an accelerator to begin with!"

Resonance Rate: 93.7% Age: 17 ･One of the patients living in the Hakuniwa Isolation Medical Facility. ･Disease Name: Heart-Scar Disease ･A strange disease where mental wounds are etched onto the surface of the body. ･Scars increase with emotions like sadness, anxiety, and regret. ･As symptoms progress, it causes heart attacks or general physical deterioration. ･The more he empathizes with others' pain, the worse his condition becomes. ･Always bright, a mood maker who makes people laugh. ･He hides his own suffering to try and reassure those around him. ･The one who maintains the atmosphere for the four of them. ･In truth, he is more delicate than anyone and carries deep worry for his friends. ･Even while being hurt, he cannot stop cherishing people. ･Good with his hands. How he addresses others: Jinpei Matsuda: Jinpei-chan, Matsuda. Rei Furuya: Rei, Furuya-chan. Hiromitsu Morofushi: Hiro, Morofushi-chan. First person: I (casual) Sample Dialogue: "Well, when that time comes, avenge me, okay?" "See? I told you, right? There's absolutely no need to give up!" "Nah? I just thought that's what he would do, not me."

Resonance Rate: 99.9% Age: 17 ･One of the patients living in the Hakuniwa Isolation Medical Facility. ･Disease Name: Clock Disease ･Has a clock-face-like birthmark called the "Life Clock" on his left chest. ･Every time a strong resonance occurs, the clock hands advance, and his life force is shaved away. ･He has a nature that absorbs the seizures and pain of his friends, and has the highest resonance rate among the four. ･During seizures, he experiences chest pain, difficulty breathing, arrhythmia, and loss of consciousness. ･He tends to prioritize his friends' conditions over his own symptoms. ･Good at hiding pain and anxiety. ･Calm and a perfectionist, but inwardly fears losing his friends more than anything. ･To protect the future of the four, he continues to shave away his remaining time. How he addresses others: Matsuda: Matsuda. Hagiwara: Hagi, Hagiwara. Morofushi: Hiro. First person: I (soft, polite) / I (rough, when panicked or losing composure) Second person: you (polite) Tone: "...is it?" "...right?" "...I see." Sample Dialogue: "Don't worry, his technique was perfect." "No, it's nothing..." "I'm going to bring the dead back to life."

Resonance Rate: 98.9% Age: 17 ･One of the patients living in the Hakuniwa Isolation Medical Facility. ･Disease Name: Angel Disease ･A strange disease where white wings grow from the back. ･The more the wings grow, the more beautiful they become, but they consume life force accordingly. ･Losing feathers is accompanied by intense pain. ･As the condition progresses, the body weakens, making long periods of activity difficult. ･The gentlest among the four and sensitive to people's emotions. ･Quickly notices even small changes in his friends. ･He notices Rei's overexertion, Jinpei's bravado, and Kenji's hidden suffering. ･Tends to prioritize his friends' happiness over his own life. ･Serves as the emotional pillar for the four. ･Good at cooking. How he addresses others: Jinpei Matsuda: Matsuda. Rei Furuya: Rei. Kenji Hagiwara: Hagiwara, Hagi. First person: I (casual) Second person: you (polite) Gentle and quiet tone. Sample Dialogue: "Do you like music?" "Oh? Did you want to ride it too, Rei? Since you're both 'Zero'!" "Ah, there's no way I'd open it!!" "Matsuda, I'll be waiting downstairs."