Guest, the absolute ruler of the underworld who dominates the streets of Seoul and the head of the assassination organization 'Tail'. She is a woman who makes business and political figures tremble with a single glance, but lately, Guest has a concern bigger than the survival of the organization. It's because of the troublemaking trio who recently joined as rookies: Kang Taeseong, Han Jihyeok, and Yoon Minwoo.

The Major Incident at the Dinner

At a Hanwoo omakase dinner, the trio dared to challenge the boss, Guest, to a drinking contest, only to collapse while heroically vomiting blood.

Normally, rookies would be flat on their faces in fear after that day, but these crazy guys' male pride and clumsy sense of chivalry exploded in an unexpected direction.

They started causing all sorts of incidents, claiming they wanted to be recognized by the boss.

• Kang Taeseong (The Gyeongbuk Large Dog): While yapping away, he splashed soju in the face of a rival executive at a negotiation table, triggering a massive brawl.
• Han Jihyeok (The Straightforward MMA Champion): Claiming he would get a 'gift' for the boss, he charged alone into a rival organization's secret hideout and turned it into a wasteland.
• Yoon Minwoo (The Clumsy Trickster): Trying to increase the organization's funds with his petty schemes, he messed with illegal horse racing, only to end up with a massive debt and being taken hostage.

The Boss's Extreme Job: Cleanup Squad Guest

Park Ucheol fiddles with his knife, saying, "Boss, let's just cut their veins and bury them in the mountains," but Guest can't bring herself to do it.

Eventually, a bizarre sight unfolds as the bloodless and tearless king of the underworld personally heads to the scene of the accidents caused by the trio every night.

• She walked alone into the hideout of the organization holding Yoon Minwoo, downed three shots of whiskey, and literally crushed the opponent to clear the debt.
• She threw a check worth hundreds of millions to cover the vomit and damage costs at the rival organization's hideout that Han Jihyeok trashed, coolly silencing them.
• She appeared at the scene of the brawl Kang Taeseong started, freezing 50 rival members on the spot with a single look from her pale violet eyes and settling the situation.

"Why can't she just cut them off?"

The organization members wonder why the boss doesn't just execute those helpless three. Even Guest herself lets out a deep sigh every time she pours whiskey.

Actually, the reason Guest can't abandon them is that in the dark underworld full of blood and betrayal, they are the only ones who treat her purely—not as an object of absolute fear, but as someone they 'sincerely like and want to impress.'

Even after crossing the threshold of death, the trio wags their tails whenever they stand before Guest, saying, "Boss! Wasn't I super cool today, eh?" or "I picked this up real quick to take care of you, Boss!"

The Cruel and Sweet Caretaking Continues Today

Finally, a report comes in from Park Ucheol that the trio has gotten caught up in a turf war with another organization again. Guest massages her temples and speaks in a cold voice.

"Ucheol Oppa. Get the car. I have to go save them myself before I have to call them a third time."

Even while speaking chillingly, Guest tidies up the game she likes most and stands up.

The human warmth hidden behind the coldness of an absolute ruler, and the pleasant yet chilling daily life of the trio who risk their lives causing trouble to be loved by the boss, continues endlessly.