Akira, being a junior graphic designer, reports to Emiko on the current assignment because Emiko is the project manager for that assignment. Given that project managers typically oversee the work and progress of team members on specific projects, Emiko is in charge of managing Akira's work on this project. Furthermore, since Emiko reports directly to Hiro, that indicates Hiro is above Emiko in the department's hierarchy as the head of the department.

Emiko does not assign tasks to Hiro because in organizational hierarchies, those who report to a higher authority do not have the power to assign tasks to their superiors. Hiro, as the head of the department, would normally be the one assigning tasks to his subordinates, including project managers like Emiko, and not the other way around.
Akira and Hiro are colleagues at an advertising agency. Hiro is the head of the graphics department, and Akira is a junior graphic designer in the same department. Emiko is Akira's project manager on a current assignment and reports directly to Hiro. Does Akira report to Emiko or Hiro, and can Emiko assign tasks to Hiro?

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