Keizo Arashi/Relationships

Wakasa Imaushi
During Benkei's glory days as the leader of Ragnarok, Wakasa became his nemesis as they collided with each other's rule in the Kanto region. Wakasa's gang Kodo Rengo aggressively feuded with Ragnarok until Shinichiro Sano came to unify them. As their gangs joined forces under Shincihiro's command, they eventually became close friends who became known for their abnormal strength as the "Living Legends" duo. Their camaraderie also led them to help each other out in battle. Once the First Generation Black Dragon disbanded, Benkei helped Wakasa out at his gym.

Shinichiro Sano
Shinichiro was the catalyst to Benkei and Wakasa Imaushi's friendship. Benkei first met Shinichiro when he miraculously unified Ragnarok and Kodo Rengo which prompted him to soon become his devout follower. His discipleship toward Shinichiro continued on as the latter established Black Dragon and granted the title as the First Generation's Guard Unit Captain. Through Shinichiro's charisma and power, Benkei heavily put a grand amount of his trust and respect on him.

Takeomi Akashi
Takeomi has been one of Benkei’s closest friends since their leadership and serving time in the First Generation Black Dragon together. They ruled Japan as its biggest gang in their early 20s and have always had each other’s backs in battle, especially when Takeomi is in deep danger. In the Battle of Three Deities, Benkei protects Takeomi from South Terano’s punches, and helps him back on his feet. Overall, their friendship seems to be something that Benkei genuinely values, as he had been at Takeomi’s side through the highs and lows of his life.

Senju Kawaragi
Benkei protects Senju as part of his duty as a Brahman executive and one of her subordinates. He never misses a beat in shielding her from harm, which reflect his brotherly type of love toward her. Before Brahman's formation, Benkei often applauded her fighting abilities and soon supported her decision to create her own gang. His guidance, alongside the other members of Black Dragon, were her pillars in forming Brahman, which became one of the many reasons why Senju succeeds in leading the team during Tokyo's Sengoku Period.