Ekaterina's first days at the academy have been eventful, to say the least, and while her initial plan to avoid the heroine and main love interest hasn't exactly worked out, our not-so-villainous villainess has settled in just fine. She's even found a true friend in Flora, the lovely heroine of the game. There is one big problem, though: Her brother disapproves of their friendship. For the first time since Ekaterina recovered her memories, she and Alexei clash—and both struggle to cope. This sibling falling-out isn't Ekaterina's only concern. A dangerous event looms ahead that could spell the empire's doom if handled incorrectly. Will Ekaterina manage to make up with her dear brother and protect the empire? Watch over her in this last volume of the manga adaptation of Goodbye, Overtime!