Chief Kiritani is a sturdy employee of a huge corporation. One day, he woke up stark naked and being pinned downy by a man. Before he could protest, he was penetrated. The man in question was Matsubara, the son of the company's president., who personally asked Kiritani to mentor the young master. Outwardly, Matsubara Takaya towers above the rest and is good-looking. However, he seems to only cause trouble for Kiritani. What will Kiritani do with this problem child?