Primary

• Patricia Martin Classmate of Yutaka Kobayakawa
• Patricia Martin Classmate of Minami Iwasaki

Extended

• Yutaka Kobayakawa Friend of Minami Iwasaki
• Yutaka Kobayakawa Younger Sister of Yui Narumi
• Yutaka Kobayakawa Niece of Soujirou Izumi
• Yutaka Kobayakawa Cousin of Konata Izumi
• Yutaka Kobayakawa Niece of Kanata Izumi