Chikako, who is in charge of training new employees at a large corporation's training center, has promised to marry her colleague Junpei and works enthusiastically every day with her heart pounding. However, this year's newcomers all have a history of belonging to a certain university's 'sex club' and quickly set their sights on Chikako's voluptuous body. After the training session, they get Chikako, who is weak to alcohol, drunk on a special drink and start playing rock-paper-scissors to decide who gets to go first…
