Primary

• Reborn Younger Version of Reborn (adult)
• Reborn Tutor to Tsunayoshi Sawada

Extended

• Tsunayoshi Sawada Best friend of Takeshi Yamamoto
• Tsunayoshi Sawada Student of Reborn
• Reborn (adult) Older Version of Reborn
• Reborn (adult) Home tutor to Tsunayoshi Sawada