Kyou Kara Hitman
Other names: 上班族殺手, 今日からヒットマン, Hitman - Part Time Killer, Kyo kara Hitman
Author: Mutou Hiroshi
Artis: Mutou Hiroshi
From Random Scanlations: On in his right, his index on a trigger. On his left, a wedding ring. That is Tokichi's new life. A shy and clumsy salaryman, forced to become a hitman overnight. A double life: bowing during the day and gunfighting at night.