Primary

• Seika Houjouin Friend of Erika Takezono
• Seika Houjouin Friend of Ayano Kaneko
• Seika Houjouin In love with Teppei Arima
• Seika Houjouin Friend of Charlotte Hazelrink
• Seika Houjouin Friend of Sylvia Van Hossen
• Seika Houjouin Friend of Yuu Fujikura

Extended

• Ayano Kaneko Friend of Seika Houjouin
• Ayano Kaneko Friend of Erika Takezono
• Erika Takezono Friend of Seika Houjouin
• Erika Takezono Friend of Ayano Kaneko
• Charlotte Hazelrink In love with Teppei Arima
• Charlotte Hazelrink Best friend of Sylvia Van Hossen
• Charlotte Hazelrink Friend of Seika Houjouin
• Charlotte Hazelrink Friend of Yuu Fujikura
• Sylvia Van Hossen Daughter of Vincent Van Hossen
• Sylvia Van Hossen In love with Teppei Arima
• Sylvia Van Hossen Best friend of Charlotte Hazelrink
• Sylvia Van Hossen Older sister of Maria Van Hossen
• Yuu Fujikura Servant of Teppei Arima
• Yuu Fujikura In love with Teppei Arima
• Yuu Fujikura Friend of Charlotte Hazelrink
• Yuu Fujikura Friend of Sylvia Van Hossen
• Yuu Fujikura Friend of Seika Houjouin
• Teppei Arima grandson of Isshin Arima