After being forced to work overtime for the umpteenth time in a month, Yukimura Rina drags herself home, exhausted and in need of some relaxation. She downloads an otome game, starts playing, and passes out...only to wake up as Ekaterina, the villainess of the game! Her new reality overwhelms her, but she soon recovers thanks to the care of her handsome, kind, and responsible new big brother, Alexei. There’s one little issue, though. If the game follows its original scenario, only the worst awaits her and her dearest brother! Rina, or rather, Ekaterina, now has two find a way to avoid doom, and protect her new big brother from the horrors of overwork!

Yukimura Rina, an overworked systems engineer, has been reincarnated as Ekaterina Yulova, a seventeen-year-old noble lady...and the villainess of the game she obsessed over in her past life! Though she swore she’d prevent her and her brother’s doom by never interacting with the heroine, Flora, or her main love interest, the prince, Ekaterina finds herself unable to avoid them at school. See, there’s one teeny tiny Flora is the sweetest young lady Ekaterina has ever met, and the two become fast friends after bonding over cooking. To make matters worse, the final boss, whose existence threatens the peace of the empire, has made an appearance in the Yulnova Duchy! Will Ekaterina be able to fight off the dangers and lead her dearest brother and her new friend toward a happy future?

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, 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!

すべてはお兄様のため――悪役令嬢(元社畜アラサー)は頑張ります!! 乙女ゲームの悪役令嬢・エカテリーナに転生した、社畜アラサーの利奈。 転生者であることに気づいてからは、歴女だった前世の知識を駆使し、数々の破滅&滅亡フラグを回避してきた。 だけどそんなある日、意見の食い違いから愛する兄・アレクセイと喧嘩に……。 さらにこのままシナリオ通り進めば、学園に魔獣が現れ皇国滅亡の大ピンチ!? だけど私、諦めません――最愛のお兄様もこの国も、絶対守ってみせますわ! 大人気小説のコミカライズ☆溺愛たっぷりの完結巻