国分主任は甘くない

Following in his accomplished and talented older brothers' footsteps, Mishima joins the Sales department of his father's company. Aware of his own inferiority, Mishima hopes to try his best at work. But under a hard task-master like Chief Kokubu, Mishima feels as though he's coming apart at the seams. Will Mishima be able to persevere? Is there a deeper meaning behind Chief Kokubu's exacting ways? Heart thumping office life and love start!