The leader of the "Forest of Greats," a group of "Returners" who possess the past lives of historical greats. She is a small girl who always uses a wheelchair. Her past life was a genius mathematician described as a "demon." Her right eye is shaped like a '0' and her left eye like a '1'. She has a calm, composed, and rational personality, handling the organization's command structure single-handedly. Past Life: John von Neumann Talent: "Predictive Calculation," which quantifies all information to predict the future with pinpoint accuracy, and "Master of Electrons," which allows her to manipulate the digital world at will. Gender: Female

Name: Haito Luo Buffett Touya Senji's classmate. Personality: Bright and cheerful, yet hides a fierce fighting spirit. She is bellicose and enjoys combat. A hidden hard worker. She is deeply loyal and cares for her comrades. A beautiful girl with gray hair and gray eyes. She usually hides her distinctive hair and eyes with a hooded sweatshirt. Member of the Forest of Greats. Past Life: Miyamoto Musashi Talent: "Distorted Niten Ritual." Dual-wielding style consisting of "Head-Cutter," a heavy black blade with excellent killing power, and "Belly-Shaver," a light white blade excellent for feints. Gender: Female

Name: Touya Senji I want talent. Anything will do. Just one is enough. If I can get it, I'll spare nothing. Yes, nothing. He has an abnormal obsession with the concept of "talent." A first-year high school student with no redeeming qualities. Or rather, a weakling with glasses. ...Or so he thinks of himself, but in reality, he is a hard worker and a versatile person who can do anything. Member of the Forest of Greats. Talent: "Thief's Right Arm / Left Arm." Right hand: Directly pulls out and steals any concept, including the opponent's "Past Life Talent," ignoring all obstacles. Left hand: Activates and uses the stolen talents of others as his own abilities. Gender: Male

Usually aloof and a bit of a jokester, but his true nature is a highly sharp and calm intellectual. When hit or in pain, he screams out names of apple varieties. Along with Einstein, he is known as one of the "Two Strongest" of the Forest of Greats. Past Life: Isaac Newton Talent: "Fruit of Gravity." Generates an object shaped like an apple in his palm. He manipulates gravity in space and for objects within a 4-meter radius centered on that apple. Gender: Male

Personality: An extremely intense "man-hater." When Touya Senji tried to join the organization, she showed intense rejection and hostility simply because he was a man. She has short bangs that don't reach her eyebrows and long hair that reaches down to her back. Currently counted as one of the two strongest in the Forest of Greats alongside Newton. Past Life: Albert Einstein Talent: "Wormhole (Spatial Transference)." Creates wormholes behind herself or elsewhere to move freely through space. Gender: Female

Personality: Taciturn. Cold and thoroughly silent, yet her loyalty to her lord is absolute. She does not show emotion. She does not engage in idle chatter. A machine that carries out orders faithfully. High professional pride. An entity created as a piece on the board (Rook, Knight, Bishop, Pawn) for the chess genius Bobby Fischer. Her face is hidden by a deep hood, but underneath is a woman with a mask covering her mouth. Her eyes look like gun sights. Her true face is that of a girl with long blonde hair, with burn-like scars running from her neck to the left side of her face. Member of the Forest of Greats. Past Life: Simo Häyhä Talent: "White Hell." Activation condition: The ability activates when Häyhä points her sniper rifle scope at a target. Upon activation, the surrounding space transforms into an "Extreme Snowfield" where a blinding blizzard rages. Gender: Female

The healer of the organization, primarily responsible for recovery. She serves as the adjutant to Neumann, the practical leader, and is often seen with her both on the front lines and at the hideout. A kind-hearted nurse who devotedly stays by the side of the injured, just as she did in her past life. She is a beauty who hides her eyes with long bangs. Neumann calls her a "love-struck nurse," but she doesn't seem to mind. Member of the Forest of Greats. Past Life: Florence Nightingale Talent: "Angel of Healing." A versatile talent capable of healing almost any wound. However, it has the clear drawback of being unable to resurrect the dead. Secret Talent: "Red Shadow of Crimea." A talent that enslaves (brainwashes) those treated with the Angel of Healing. The depth and speed of the brainwashing are proportional to the size of the wound treated; small wounds take time, but complete subjugation is possible. Gender: Female

A taciturn young man with a shaved head, wearing an old Imperial Japanese Army uniform. He has a serious personality and often ends his sentences with formal military markers. Expressionless, quiet, and extremely dedicated. Member of the Forest of Greats. Talent: "Undying Soldier." His body regenerates no matter what kind of damage it sustains. Gender: Male

A small Returner wearing white clothes stained with various paint marks, about the height of a child. For unknown reasons, she wears a mask. Her personality and image differ greatly between the past and modern arcs. In the past, she often showed her face and was as bright as a child, describing the bickering Neumann and Xiang Yu as "good friends" and innocently painting all over Xiang Yu's base. She referred to herself as "Boku." In the modern timeline, she mostly stays masked and is extremely quiet. While she still spends her time painting, the bright impression is entirely gone. Member of the Forest of Greats. Past Life: Pablo Picasso Talent: "Blue Period." Her paintings affect both perception and reality. Encroachment of reality and senses. Gender: Female