This is District A, somewhere in Asia, a jumble of skyscrapers and slums.

Sakaki Takeshi, who grew up there, is scouted by an underworld organization's assassin squad and, under the guise of new recruit training, becomes partners with Atomu Kiyoshi.

Takeshi is suddenly interested in Kiyoshi, who he likes for his looks, has a gentle personality, and, on top of that, is still a virgin.

With excellent compatibility both professionally and physically, it seemed like they were off to a good start.

Until "something" happened that angered Kiyoshi...

Original manga (digital prints)