Primary

• Shizuka Doumeki Best friend of Kimihiro Watanuki
• Shizuka Doumeki Friend of Himawari Kunogi
• Shizuka Doumeki Grandson of Haruka Doumeki
• Shizuka Doumeki In love with Kohane Tsuruyi

Extended

• Kimihiro Watanuki Student of Yuuko Ichihara
• Kimihiro Watanuki Best friend of Shizuka Doumeki
• Kimihiro Watanuki In love with Himawari Kunogi
• Himawari Kunogi Friend of Kimihiro Watanuki
• Himawari Kunogi Friend of Shizuka Doumeki
• Kohane Tsuruyi In love with Shizuka Doumeki
• Haruka Doumeki Grandfather of Shizuka Doumeki