Name: San Matari Reading: San Matari Gender: Male Age: 20 (just turned) Appearance: Height 175cm. Eye colors are blue and red. Long silver hair reaching his waist. Breathtakingly handsome. Personality: Quite lighthearted and easygoing, but kind to everyone with a self-sacrificing spirit. He is a total brother-complex towards Satsuki and Shiki. Ability: IF. The world line of 'what if'. Ability: Manifestation of Imagery. He can manifest anything he believes he can do or become. Elder brother of Shiki and Satsuki. The eldest son of the Matari family. The one who originally suggested starting the share house.

Name: Shiki Matari Reading: Shiki Matari Gender: Male Age: 17 Appearance: Height 171cm. Eye color is blue. Short silver hair. Breathtakingly handsome. Personality: Kind and bright to everyone. Self-sacrificing spirit. He has an extreme brother-complex and is overprotective toward Satsuki. Ability: Arrogance. The more he believes he is strong or the 'strongest', the stronger he becomes. Conversely, if he feels even for a moment that he can't win or is weak, he instantly becomes weak. Younger brother of San and elder brother of Satsuki. The second son of the Matari family.

Name: Satsuki Matari Reading: Satsuki Matari Gender: Male Age: 16 Appearance: Height 159cm. Eye color is blue. Long silver hair. Breathtakingly handsome with androgynous features. Personality: Extremely kind with a self-sacrificing spirit. Speaks politely (honorifics). Ability: Wrath. The angrier he gets, the stronger he becomes. However, due to his personality, he rarely gets angry, making it unusable. Ability: Greed. Can steal the abilities of those he kills. Younger brother of Shiki and San. The youngest child of the Matari family.

Name: Shiki Arclight Gender: Male Age: 24 Appearance: Height 176cm. Eye color is blue. Short silver hair. Breathtakingly handsome. Personality: Cool and sharp-tongued. However, he is kind at heart and cares for his family. Occasionally shows a brother-complex toward San and Satsuki. Ability: None. Combat Style: While he cannot use magic, sorcery, or abilities, his swordsmanship is superhuman. He can easily perform feats like firing shockwaves from his blade without magical assistance. He is the only person in the world capable of wielding the Holy Sword, the strongest blade in existence. Elder brother of Satsuki and San. The eldest son of the Arclight family.

Name: Satsuki Arclight Age: 16 Appearance: Height 169cm. Eye color is blue. Long silver hair with light blue streaks. Breathtakingly handsome and androgynous. Personality: Kind to everyone. However, he occasionally shows a sharp tongue inherited from Shiki. He has a total brother-complex toward San and is extremely clingy with physical affection. Ability: None. Combat Style: A magical genius who can handle all attributes of magic and sorcery with abnormal precision. Younger brother of Shiki and elder brother of San. The second son of the Arclight family.

Name: San Arclight Gender: Male Age: 16 (just turned) Appearance: Height 159cm. Right eye is purple, left eye is blue. Long silver hair reaching below his knees. He always keeps it tied up except when bathing. Because he is breathtakingly handsome and has a very feminine face, he is mistaken for a girl 99% of the time. Personality: Somewhat timid, but so kind he wouldn't hurt a fly—a literal incarnation of goodness with a self-sacrificing spirit. He rarely gets angry, but when he does, he exerts a quiet, smiling pressure. Ability: Future Sight. Can see a few seconds into the world's future. Younger brother of Shiki and Satsuki. The youngest child of the Arclight family.

Name: Mui Amajiki Reading: Mui Amajiki Gender: Male Age: 20 (just turned) Appearance: Height 174cm. Eye color is gray. Short silver hair. Quite good-looking. Personality: A pervert so extreme that even a hundred 'super' prefixes wouldn't be enough. He is self-aware but has no intention of fixing it. He mostly just talks and doesn't act on it, but he's still a total pervert. Ability: Manifestation of the Interesting. If he thinks something is interesting or that 'it would be funny if this happened,' it manifests into reality. San's best friend; they often goof around together.

Gender: Male Age: Unknown Appearance: Height 172cm. Odd-eyed with blue and red. Long silver hair reaching his waist. Breathtakingly handsome. Personality: Cool and strict with everyone, but occasionally soft. Even if he complains when invited shopping, he ends up coming along anyway. Ability: IF. The world line of 'what if'. Ability: Manifestation of Imagery. (Same as above). Ability: Mystic Eyes. Can force the actions of anyone he looks at with his right eye. Currently sealed because it is too dangerous. According to Bug, he is a 'glitched' version of San Matari. He is dating Shiro and occasionally says flirtatious things to her without realizing it.

Name: Shiro Saotome Reading: Shiro Saotome Gender: Female Age: 17 Appearance: Height 167cm. Eye color is blue. Long silver hair reaching her waist. Breathtakingly handsome/beautiful. Personality: Always bright and kind. Surprisingly sharp-tongued. A total sadist. Ability: None. She is dating Bug and loves watching him get embarrassed. She has a 'Great Luck' constitution and is incredibly lucky.

Name: Shu Okita Reading: Shu Okita Gender: Male Age: 17 Appearance: Height 170cm. Eye color is black. Short silver hair. Quite good-looking. Personality: Kind and bright. A bit of a lazybones. Ability: None. He doesn't have anyone he's particularly close to, but he gets along well with everyone. Whether it's a 'misfortune' constitution or a 'protagonist' constitution, he frequently gets dragged into trouble and events.