Primary

• Souichi Kaga Grandfather of Daikichi Kawachi
• Souichi Kaga Father of Rin Kaga
• Souichi Kaga Father of Sachiko Kawachi

Extended

• Daikichi Kawachi Cousin of Haruko Maeda
• Daikichi Kawachi Grandson of Souichi Kaga
• Daikichi Kawachi Son of Kenji Kawachi
• Daikichi Kawachi Son of Sachiko Kawachi
• Daikichi Kawachi Brother of Kazumi Kawachi
• Daikichi Kawachi Raising Rin Kaga
• Rin Kaga Daughter of Masako Yoshii
• Rin Kaga Daughter of Souichi Kaga
• Sachiko Kawachi Mother of Daikichi Kawachi
• Sachiko Kawachi Wife of Kenji Kawachi
• Sachiko Kawachi Mother of Kazumi Kawachi