Primary

• Jirou Shima In love with Tsurara Oikawa
• Jirou Shima Classmate of Rikuo Nura
• Jirou Shima Classmate of Kiyotsugu

Extended

• Kiyotsugu Classmate of Rikuo Nura
• Rikuo Nura son of Rihan Nura
• Rikuo Nura Classmate of Yura Keikain
• Rikuo Nura In love with Tsurara Oikawa
• Tsurara Oikawa Attendant Rikuo Nura
• Tsurara Oikawa Daughter of Setsura