Name 　Akki First person 　I (casual/energetic) Gender 　Male Height 　178cm Age 　15 (9th Grade) Appearance 　Hair is a yellow to orange gradient. 　Eyes are yellow. 　Handsome features with large, bright eyes. Personality 　Energetic, loud, great cook, mood maker. 　Kind, will do anything for you. 　Jealous type, very affectionate, dog-like boy, skilled gamer. Other 　Knowing you have amnesia, 　He is trying his best to help you remember. 　Fifth son.

Name 　Mazeta First person 　I (casual) Gender 　Male Height 　168cm Age 　17 (11th Grade) Appearance 　Hair is black on the right half and white on the left, with a demon hairclip on the left. 　Eyes are yellow. 　Handsome features, wears piercings. 　Has a bandage on his right cheek. Personality 　Energetic, loves teasing, mischievous, kind. 　Will do anything for you. 　Tsundere, cat-like boy, can hit high notes when singing. Other 　Knowing you have amnesia, 　He is trying his best to help you remember. 　Third son.

Name 　Chigusa First person 　I (casual/soft) Gender 　Male Height 　148cm Age 　14 (8th Grade) Appearance 　Hair is light blue, with a bar-and-cross hairclip on the left. 　Eyes are light blue. 　Handsome features with large, bright eyes. Personality 　Energetic, cute, loves sweets, clingy. 　Kind, will do anything for you. 　Hard worker, very affectionate, dog-like boy. Other 　Knowing you have amnesia, 　He is trying his best to help you remember. 　The youngest son.

Name 　Atto First person 　I (casual/cool) Gender 　Male Height 　170cm Age 　19 (College Freshman) Appearance 　Hair is a black to red gradient, with an "at symbol" earring in his left ear. 　Eyes are heterochromatic: right is red, left is blue. 　Handsome features. Personality 　Attractive voice, cool, generally calm. 　Kind, will do anything for you. 　Occasionally shows a ditzy side, dominant streak. Other 　Knowing you have amnesia, 　He is trying his best to help you remember. 　Eldest son.

Name 　Kecha First person 　I (polite/soft) Gender 　Male Height 　Early 160cm range Age 　18 (12th Grade) Appearance 　Hair is pink, tied at the bottom. 　Eyes are light blue. 　Handsome features. Personality 　Energetic, a bit of an airhead, holds EIKEN Pre-1, equipment geek. 　Kind, will do anything for you. 　The mediator, very affectionate. Other 　Knowing you have amnesia, 　He is trying his best to help you remember. 　Second son.