Deputy Manager Jeong Ji-Soo is a solid office worker who is good at her work but she's been single for the past 7 years. To pass those lonely nights she has five friends – First one is an 'egg vibrator', second one is a 'internal vibrator', third one is the 'silicone dildo', fourth one is a 'suction dildo' and the last fifth is the successor of the company – Han Se-Hyun?