Kanako Oba is all alone, and thinks her life can't get any worse...until she applies for a dubious part-time job on a whim, and is instantly torn from her mundane existence. She ends up being sold to a restaurant with fortress-like walls, thick iron doors, and an intensely colorful interior. Trapped within, she has no choice but to work as a waitress for the owner Bombero, a genius chef who also happens to be a retired assassin.
"This establishment caters exclusively to killers. Even a wrongly-placed plate could result in a death sentence."
The diner is visited by a succession of deadly and highly unusual assassins. Before long, Kanako realizes she has been hurled into a world of insanity, in which every day is a fight for survival.
You won't be able to take your eyes off the screen, even for a second...

孤独的一个人落入了人生的谷底...因一点点的冲动找到了一个诡异的打工机会，一瞬间从普通的生活跌落至地的大场加奈子被卖到一家餐厅做服务员。在这里，要塞般厚厚的铁门之后，是一家色彩及其鲜艳并唯美的餐厅。自称店主的人，正是曾经的杀手，天才厨师的邦贝罗。
「这里是专为杀手准备的餐厅，只因盘子摆放也会随时送命。」
无法用一般方式对待的凶恶杀手们不断地出现，加奈子每天都在极限状态中挣扎。
故事将一秒都不容错过地急速展开...