Koki Maeda

Human resources consultant Tsubaki Mako has been dubbed the "devil of human resources" for her iron-fisted ways. She struts her way into a well-established firm and tackles sexual harassment, power harassment, bitter rivalries between factions, and monstrous employees, all of which are issues that can strike any company, with her extreme methods. Mako is like a devil who solves problems with her bold tactics.

A grifter and her loose-cannon brother get their hands on a massive amount of money, but their ill-gotten gains puts a huge target on their back.