Hana, who is about to marry her co-worker Kimura, is a training officer at a certain company and is also training the new employees this time. However, this year's newcomers are actually all the playboys from a certain university, so what are they looking at? At the social gathering after the training, Hana, who can't drink, forced her to drink a special drink, a specialty of the circle, and got drunk. Kimura worriedly received a call from the headquarters and left the training center, but as expected, Hana ended up falling victim to their poisonous fangs.