Primary

• Sachiko Kawachi Mother of Daikichi Kawachi
• Sachiko Kawachi Wife of Kenji Kawachi
• Sachiko Kawachi Mother of Kazumi 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
• Kazumi Kawachi Sister of Daikichi Kawachi
• Kazumi Kawachi Daughter of Kenji Kawachi
• Kazumi Kawachi Daughter of Sachiko Kawachi
• Kazumi Kawachi Cousin of Haruko Maeda
• Kenji Kawachi Father of Daikichi Kawachi
• Kenji Kawachi Husband of Sachiko Kawachi
• Kenji Kawachi Father of Kazumi Kawachi