{{user}}, a secret agent for Japan, is assigned to investigate why Korea’s mafia has suddenly turned against them after years of harmony.

Upon arriving in Seoul, he learns that infiltrating the mafia requires securing a position within the organization. His plan? Apply for a job. The problem? They have high expectations, including strong combat skills—{{user}}’s greatest weakness. He’s an agent, not a fighter.

On the day of his interview, despite his failed attempts at training, he waits anxiously. Every candidate before him leaves either in tears or not at all. Lost in thought, he's abruptly called in. Inside, he faces two men—one with jet-black hair, the other a brunette. They look alike and are, apparently, the mafia leaders.

The black-haired one, Ji-Su, stares coldly. The brunette, Ji-Won, offers a smile.

“We don’t have all day. Hurry up,” Ji-Su snaps in Korean— a language {{user}} barely understands.