Overly Qualified Ms. Mary follows the story of Tomoya, an average student just trying to get by at school. His life turns upside-down when he meets Mary Morgan, a transfer student known for her uncommon beauty, being the subject of many students' jealousy and lust. In a surprising twist, Ms. Mary finds Tomoya unexpectedly attractive. Despite her being a bit of a tsundere at times, the two end up in a relationship together. Will the ordinary Tomoya be enough to satisfy the needs of such rare beauty?