Primary

• Nene Mikumo Older sister of Riku Mikumo
• Nene Mikumo Cousin of Sumire Takahana

Extended

• Riku Mikumo Younger Brother of Nene Mikumo
• Riku Mikumo In love with Sumire Takahana
• Sumire Takahana Cousin of Nene Mikumo