Primary

• Reki Kyan Best friend of Langa Hasegawa

Extended

• Langa Hasegawa Best friend of Reki Kyan
• Langa Hasegawa Friend of Cherry Blossom
• Langa Hasegawa Friend of MIYA
• Langa Hasegawa Friend of Shadow
• Langa Hasegawa Friend of Joe
• Langa Hasegawa Son of Nanako Hasegawa
• Langa Hasegawa Enemy of ADAM