New graduate Koushuu was assigned to the personnel department where he couldn't refuse any request due to his kind and timid nature. His colleagues would often ask him to do various tasks such as making tea or copying documents, but one senior employee took advantage of this by making lewd demands... As expected, Koushuu couldn't bring himself to say no despite protesting. He eventually gives in to the man's perverted desires and always ends up having sex until the end. Slowly getting consumed by the man's lust and pleasure, Koushuu finds himself lost in the world of sex...