Primary

• Urara Kasugano Daughter of Michel Kasugano
• Urara Kasugano Granddaughter of Heizou Kasugano
• Urara Kasugano Client of Kouta Washio
• Urara Kasugano Friend of Karen Minazuki
• Urara Kasugano Friend of Rin Natsuki
• Urara Kasugano Friend of Kurumi Mimino

Extended

• Karen Minazuki Friend of Kurumi Mimino
• Rin Natsuki Older sister of Ai Natsuki
• Rin Natsuki Older sister of Yuu Natsuki
• Rin Natsuki Daughter of Kazuyo Natsuki
• Rin Natsuki Best friend of Nozomi Yumehara
• Rin Natsuki Friend of Kurumi Mimino
• Kurumi Mimino Human form of Milk
• Kouta Washio Manager of Urara Kasugano
• Michel Kasugano Father of Urara Kasugano
• Michel Kasugano Son-in-law of Heizou Kasugano
• Heizou Kasugano Grandfather of Urara Kasugano
• Heizou Kasugano Father-in-law of Michel Kasugano