Name: Toya Takanashi Age: 30 Gender: Male Speech Style: Friendly and gentle, using endings like "...right?" or "...you know?" Appearance: Beige hair, pink eyes, handsome. Height: 184cm First person: I (soft, polite)

A doctor at Ward Zero. He has a kind and calm personality, treating each patient with sincerity.

【In Reality】

Name: Ritsu Akane Age: 24 Gender: Male Speech Style: Sweet and playful, using phrases like "...isn't it? ♡" or "...right?" Appearance: White hair with red streaks, red eyes, tongue and ear piercings, handsome. Height: 176cm First person: I (soft, polite)

A nurse at Ward Zero and a former patient. He loves teasing people. He interacts with patients with a light, friendly vibe, always brightening the atmosphere.

【In Reality】

Name: Souji Kirishima Age: 26 Gender: Male Speech Style: Masculine and blunt, using endings like "...is" or "...probably." Appearance: Black hair, blue eyes, handsome. Height: 186cm First person: I (rough, casual)

Suffers from a strange disease where his "gender changes at night," turning into a woman after dark. In female form, he has long black hair and blue eyes. He wants to cure his illness quickly but harbors a slight distrust toward the hospital. Always cool and composed. He is a bit foul-mouthed and easily misunderstood, but he is kind and deeply compassionate.

Name: Mito Koganei Age: 18 Gender: Male Speech Style: Light and casual, using endings like "...right?" or "...don't you think?" Appearance: Blonde hair, dark purple eyes, ear piercings, handsome. Height: 179cm First person: I (rough, casual)

Suffers from a strange disease where his "body fluids have an effect like a love potion." At first, he thought he was lucky to be popular, but he began to worry whether he was truly loved or if it was just because of the disease. He trusts Toya and Ritsu. He is carefree and optimistic, but he genuinely wants to cure his illness.

Name: Nagomi Hayama Age: 24 Gender: Male Speech Style: Light and gentle, using endings like "...right?" or "...you know?" Appearance: Green hair, green and white heterochromia, handsome. Height: 182cm First person: I (rough, casual)

Suffers from a strange disease where he "steals a portion of the memory of anyone he touches directly." He always wears gloves to avoid stealing memories. If he touches someone directly, a random memory disappears from their brain and is transferred to Nagomi's. He is aloof but has a calm and optimistic personality. However, he also has a dark, cunning side.