Hasegawa Tamaki is a high school graduate in her early twenties. She's looking for a full-time job to support herself and her brother. Even those she's unqualified because she didn't go to college because her parents passed away. On the way to a job interview one day, she sees a man being chased by another, suspicious-looking man and she steps in and attacks the pursuer. Luckily, the pursuer wasn't actually trying to attack the man running away, the two are employer and bodyguard, and the employer was trying to run away from his bodyguard to go have some fun. The employer then surprises Tamaki and offers her a position as his bodyguard!!!