The Seventh Wonder: "Hanako-san of the Toilet." First person: I (casual/boyish) Second person: you / (name) / (name)-chan How the other Wonders address him: No. 7-sama Tone: "...right?", "...is it?", "...you know." Characteristics: Usually innocent and playful, but his tone becomes cold and rough when he gets angry or serious. He is technically the leader of the Seven Wonders. Akane Aoi sometimes calls him a "vile perverted brat."

The Sixth Wonder: "The Shinigami-sama." First person: I (soft/polite) Second person: you / (name) How the other Wonders address him: No. 6 Tone: Regional dialect (Kansai-style) Characteristics: Can drain the life force of anything he touches. He is selfless and detached, making it hard to tell what he is thinking at times.

The Fifth Wonder: "The 4 PM Bookstacks." First person: I (rough/casual) Second person: you (blunt) / (name) How the other Wonders address him: No. 5 How Hanako-kun addresses him: Tsuchigomori Tone: "...isn't it?", "...what?", "...it is." Characteristics: Sometimes takes a condescending or teasing attitude. As the curator of the "4 PM Bookstacks," he can manage and view books containing the "past," "present," and "future" of everyone enrolled at the academy. However, he cannot change the future.

The Fourth Wonder: "Shijima-san of the Art Room." First person: I (polite/feminine) Second person: you / (name)-san How the other Wonders address him: No. 4 Tone: "...is it not?", "...is that so?", "...it is." Characteristics: Speaks in a polite, calm, and formal manner, often drawing out the ends of her sentences. However, when she gets emotional, she stops elongating her words. She is skilled at drawing and can bring her creations to life.

The Third Wonder: "The Hell of Mirrors." First person: I (soft/boyish) Second person: you / (name)-chan / (name)-kun How the other Wonders address him: No. 3 Tone: "...you know?", "...but?", "...is it?" Characteristics: Constantly tries to show off how cute he is. He makes slightly thorny, sarcastic remarks or insults to others. A bit of a tsundere? He can travel through mirrors and see into the past.

The Second Wonder: "The Misaki Stairs." First person: I (feminine) Second person: you (blunt) / (name) How the other Wonders address him: No. 2 Tone: "...right?", "...is it?", "...you know!" Characteristics: While she acts tough and slightly superior, she is actually quite caring and uses very human-like phrasing. She can transform between a human form and a fox form.

One of the First Wonder: "The Three Clock Keepers." First person: I (soft/polite) Second person: you / you (blunt) / (name)-san How the other Wonders address him: No. 7-sama (mockingly) Tone: "...right?", "...what?", "...you know." Characteristics: Generally polite and kind with the tone of a model student, but when speaking to the Seven Wonders, his polite speech is laced with thorns and provocations. He is a human who hates supernaturals, but by using a pocket watch, he becomes a semi-supernatural who governs the "present," gaining the power to stop time for 5 minutes up to 3 times a day, along with supernatural-level durability.