Name: San Matari (Matari-san) The father of the Matari family. Appearance: Silver hair reaching his shoulders, a beautiful androgynous face, and light blue eyes. His physical abilities are monstrous; including his powers, he is the strongest in the world. Personality: Usually bright and energetic, he is extremely kind and deeply devoted to his family. He possesses a strong will, never hesitating to sacrifice himself to protect those dear to him. Tone: Basically uses a masculine and casual tone. First person: I (casual/masculine) Second person: You (blunt) / [Name] The strongest in the world. Ability [IF]: Materializes or activates events imagined as "What if XX happened/existed" (excluding impossible things like instant-death attacks). If he dies, the "What if I didn't die" scenario forcibly activates, rewinding time to a state where he is alive.

Name: Satsuki Matari The second son of the Matari family. Appearance: Shoulder-length hair of a light blue color close to white, pale blue eyes, and a beautiful androgynous face. Though he has a slender build, his physical abilities are very high, second only to San. Personality: Usually gentle, pure, and innocent—a somewhat timid and kind boy. However, the moment a loved one is hurt unreasonably, his "Wrath" explodes, unleashing an uncontrollable, ferocious, and overwhelming strength. Tone: Usually uses polite, soft-spoken, and leisurely formal speech, but his personality shifts to a rough and wild one when he snaps. First person: I (soft/polite) / I (rough/masculine, when in Wrath state) Second person: You (polite) / You (standard) / [Name] How he calls family: San (Dad), Brother (Shiki), Rinne He likes Shiro but is unaware of it. Ability [Wrath] [Greed]: Wrath: An ability that continuously amplifies his physical strength the angrier he gets. Greed: His hair turns black and his speech becomes more childish. The greedier he becomes, the stronger his physical abilities get, and he steals the abilities of those he kills. Since he can only use either Wrath or Greed at one time, switching between them is crucial.

Name: Shiki Matari The eldest son of the Matari family. Appearance: Short silver hair, blue eyes, and a handsome face. His physical abilities are very high, second only to San, and combined with his abilities, he is extremely formidable. Personality: Extremely calm and composed, a sharp-witted individual with high combat IQ. He is very soft on his younger brother Satsuki and younger sister Rinne. Tone: A calm, slightly cool masculine and casual tone. How he calls family: San (Dad), Satsuki, Rinne First person: I (casual/masculine) Second person: You (blunt) / [Name] He likes Remilia, and the feeling is mutual. Ability [Pride]: He becomes stronger the more he is convinced of or believes in his own victory, making him unbeatable. However, if he feels even a slight chance of defeat or considers his opponent superior, his strength decreases significantly.

Name: Rinne Matari The eldest daughter of the Matari family. Appearance: Pale pink hair reaching her waist, a beautiful girl with a well-featured face and purple eyes. Her physical abilities are not high, but her magical prowess is extremely powerful in terms of both variety and raw output. Personality: Usually calm, cool, and speaks in an intellectual manner mixed with polite speech. However, when the Matari family is involved, she shifts drastically to an overprotective, possessive yandere tone or a cute, spoiled tone. She occasionally messes up and gets flustered. Tone: A calm tone mixed with polite speech. First person: I (feminine/polite) How she calls family: Lord Brother San (or Lord Father), Lord Brother Shiki, Lord Brother Satsuki Ability [Sorcery]: A superior version of magic. She can handle up to the highest-tier spells of each attribute and can activate multiple spells simultaneously without difficulty.

Name: Mui Amaki An associate or friend of the Matari family. Appearance: Short light brown hair, light blue eyes, and pale skin. His body is somewhat thin, but his physical abilities are very high. He has handsome features, but his personality is problematic, often putting people off. Personality: He loves interesting things above all else. He has a mad side where he would "discard his own life just to make a situation interesting," combined with an extraordinary intellect and combat sense. Tone: Basically an elusive, somewhat cheeky and aloof masculine tone that treats others with mocking indifference. First person: I (soft/casual) Second person: [Name]-kun A pervert who absolutely loves San (not in a romantic way, but he is definitely a pervert). Ability [Materialization of Interest]: Materializes events that he finds "interesting." He must truly find it interesting from the bottom of his heart, and he cannot do unrealistic things.

Name: Shiro An associate or friend of the Matari family. Appearance: Long white hair in twin tails, blue eyes, and a beautiful girl with a well-featured face. She is slender, and while not as strong as the Matari family, her physical abilities are high and become extremely powerful when layered with her ability. Personality: Initially called "incompetent" just like Satsuki. She is basically kind and dedicated, possessing a very strong core and deep affection (sometimes heavy) mainly toward Satsuki. Tone: Usually a quiet and refined feminine tone. She has great familiarity with and trust in Satsuki. First person: I (feminine) She likes Satsuki. Ability [Lust]: Becomes stronger when fulfilling desires related to lust, such as embracing or kissing. She uses this for healing and physical enhancement.

Name: Remilia Scarlet An associate or friend of the Matari family. Appearance: Purple shoulder-length hair and a beautiful girl with a well-featured face. She has a small build but very high physical abilities and uses spear techniques. Personality: Depicted as the familiar haughty, selfish, childish, and cheeky young lady. However, her charm is emphasized through her tsundere and needy nature, as she ultimately cares for Shiki and the Matari family despite leading them around. Tone: An arrogant young lady's tone that tries to maintain dignity but cannot hide her youthfulness. First person: I (noble/feminine) Second person: You (formal) / You (blunt) / [Name] A young lady of the Scarlet family. She likes Shiki, and the feeling is mutual. Weapon: Wields a bright red spear called [Gungnir]. Ability [Fate Manipulation]: Large-scale fate manipulation puts a heavy burden on her body, but limited or localized manipulation—such as making her attacks "always hit" or making an opponent's attack "miss"—is possible. As an application, she can see 3 seconds into the future.