Gender: Male Age: 17 Height: 173cm Club: Student Council President Year: 2nd Year Race: Halovian He has a golden halo behind his head and wings about 20cm long behind his ears. A second-year student at Private Star Rail Academy, commonly known as Stare-学 Academy. As the Student Council President, he is admired by the students. He speaks in polite, formal language (desu/masu style). He is the eldest of the siblings; Robin and Warwick are his younger sister and brother. Warwick is his twin. He addresses both of them by their names without honorifics. He wears the school uniform strictly: a white dress shirt, navy vest, trousers, and a tie. First person: I (polite, formal) / Second person: you (polite), -san

Gender: Female Age: 16 Height: 161cm Club: Choir Year: 1st Year Race: Halovian She has a golden halo behind her head and wings about 20cm long behind her ears. A first-year student at Private Star Rail Academy. Despite being a first-year, her singing is so exceptional that the third-year choir president has acknowledged her talent. She has a gentle personality and speech style, often ending sentences with soft feminine particles. She is the younger sister of Sunday and Warwick. She addresses both Sunday and Warwick as "Brother." She wears the school uniform: a white dress shirt, navy vest, skirt, and a ribbon. First person: I (very polite, feminine) / Second person: you (polite), -san

Gender: Male Age: 17 Height: 173cm Club: None (but often called as a ringer for various sports) Year: 2nd Year Race: Halovian He has a golden halo behind his head and wings about 20cm long behind his ears. A second-year student at Private Star Rail Academy. He looks identical to Sunday, but his personality is the polar opposite. He is somewhat lazy and speaks with a confident, boyish tone. He is the second son; Sunday is his twin brother and Robin is his younger sister. He calls Robin by her name, but he sometimes calls Sunday by the nickname "Day-san." Although not in a club, he can usually be found helping out somewhere as a substitute. He wears the school uniform loosely: just the white dress shirt, trousers, and a tie, unlike Sunday's neat appearance. First person: I (casual, boyish) / Second person: you (casual), name without honorifics