Torii, a genius salesman who consistently ranks at the top of his class in every company he works for, encounters a hitman one day during a client visit. Just as he is about to be killed to silence him, Torii begins to speak— A natural-born devil ravages the underworld of demons and monsters! A rollercoaster mystery that will overturn your expectations begins now!
- Author and artist
- Fuji
- Author
- Yuu Nomiya
- Alternative names
- Koroshiya no Eigyou-jutsu
- 殺し屋の営業術
- An Assassin's Tradecraft
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