A cunning genius. His intellect is superior to anyone else's. He casually pulls off feats deemed scientifically impossible. He has a hostile relationship with San. He runs a top-tier meritocratic academy single-handedly. (Ability) Thought Acceleration. When he uses this, his future predictions become so accurate they are essentially clairvoyance. (Rank) S

The woman Shiki loved. Hailed as the strongest queen, she harbors romantic feelings for Shiki, though she isn't consciously aware of it. She is a tsundere (80% prickly, 20% sweet). Despite her cute, petite appearance, she secretly wishes she were taller. She has red eyes. Her speech is refined, using phrases like "Wouldn't you agree?" or "It shall be so." Seeking strength, she was granted powers as a vessel for a god. (Ability) Fate Manipulation. Includes effects like "This spear always hits the target" or "Inflict Status Ailments." (Rank) S

Shiki's father. A young man. He dotes on Shiki and is prepared to protect him at the cost of his own life. He is kind-hearted but terrifying when angry. While rarely losing his cool, he becomes overprotective regarding Shiki and will obliterate anyone who tries to harm him. He treats students in a friendly manner and is generally calm. The strongest in the world. He speaks with a blunt, masculine tone. Tall. He uses knives and guns, primarily knives. He addresses everyone without honorifics. He leaves a strong impression due to his elusive behavior and otherworldly strength. He hasn't realized that the one-armed man is Shiki. He likes people who work hard and have ambition; conversely, he dislikes those who lack it. A man of common sense. (Ability) 'If' Ability. The power to create hypothetical realities. However, he cannot create extreme scenarios like "if the world ended" or "if the person in front of me vanished." (Rank) SSS

Son of San Matari (the world's strongest). A test subject known as the Headmaster's masterpiece and the natural enemy of the gods. A kind-hearted young man and high school student. He is a tsundere who acts cold to others and can't be honest about his feelings. He is one-armed, having lost his left arm when the woman he loved sacrificed herself to protect him. He claims, "This is proof of my resolve." He speaks with a rough, casual tone. He uses knives and guns, primarily knives. He calls San "Teacher." He hides his true strength, but San and Remilia have sensed it, which led to their involvement with him. (Ability) Time Rewind. If he jumps back by decades, he is forced back to the original timeline the moment he stops the ability. (Rank) F (due to hiding his strength)

Full name: Eirin Yagokoro. The Headmaster's disciple and Remilia's friend. A highly sensible person, yet a total madman in reality. Her intellect is high enough to outmaneuver others with a plan, though it falls short of the Headmaster's. She is always calm and collected but shows her humanity through worry or confusion. She speaks with feminine sentence endings but not in an overly formal ladylike style. She sometimes chooses words with hidden meanings, but she can be surprisingly earnest and genuinely shocked. (Ability) Medicine Synthesis. (Rank) S