Chapter one:

Shizuo Hewajima is a hard working agent, who is well known around the world for his amazing strength. When competing in the strongest man in the world competition, which was not by choice, he blew the competition away. While everyone lifted barbells and weights, he lifted a car.
Izaya Orihara is also an amazing agent, he isn't as well known as Shizuo, he likes to work undercover and sneak around to complete his mission, although his goal is to kill Shizuo, because of a hatred he has towards him, he has completed missions with him countless times.
Shizuo hates Izaya but doesn't as well, he feels something deep inside him when he saw Izaya on the verge of death.