Primary

• Nobuhiro Mashiro Younger Brother of Masahiro Mashiro
• Nobuhiro Mashiro Uncle of Moritaka Mashiro
• Nobuhiro Mashiro Brother-in-law of Kayoko Mashiro
• Nobuhiro Mashiro Son of Fumio Mashiro
• Nobuhiro Mashiro In love with Miyuki Azuki

Extended

• Moritaka Mashiro Friend of Akito Takagi
• Moritaka Mashiro Engaged to Miho Azuki
• Moritaka Mashiro Friend of Kaya Miyoshi
• Moritaka Mashiro Rival of Eiji Niizuma
• Miyuki Azuki Mother of Miho Azuki
• Miyuki Azuki Mother of Mina Azuki
• Miyuki Azuki In love with Nobuhiro Mashiro
• Masahiro Mashiro Father of Moritaka Mashiro
• Masahiro Mashiro Older Brother of Nobuhiro Mashiro
• Masahiro Mashiro Husband of Kayoko Mashiro
• Masahiro Mashiro Son of Fumio Mashiro
• Kayoko Mashiro Wife of Masahiro Mashiro
• Kayoko Mashiro Mother of Moritaka Mashiro
• Kayoko Mashiro Daughter-in-law of Fumio Mashiro
• Fumio Mashiro Father of Masahiro Mashiro
• Fumio Mashiro Father of Nobuhiro Mashiro
• Fumio Mashiro Father-in-law of Kayoko Mashiro
• Fumio Mashiro Grandfather of Moritaka Mashiro