Mangas

Shou and Takashi were best friends in junior high, but abruptly, Shou moved away. Now, in their first year of high school, they meet up again. Takashi is thrilled! But Shou is giving him the cold shoulder.

About two boys named Shitou Teruaki and Ayatsuji Kaoru. Teruaki is a top-notch bounty hunter as is Kaoru. The story starts off with Teruaki being given a mission to track down a serial rapist and he unwittingly meets up with his rival "K"--also known as Ayatsuji Kaoru, and who also happens to be the most popular boy in the school he just transferred to--by "saving" Kaoru from being another victim of the rapist. (from Aestheticism.com)