Primary

• Minami Shimada In love with Yoshii Akihisa
• Minami Shimada Older sister of Hazuki Shimada

Extended

• Yoshii Akihisa In love with Mizuki Himeji
• Yoshii Akihisa Friend of Minami Shimada
• Yoshii Akihisa younger brother of Akira Yoshii
• Hazuki Shimada Younger Sister of Minami Shimada