A fan of the novel A Returner's Rosy Second Life enjoyed the rags-to-riches tale of Riena Cassius. Her favorite character was Leandro, Riena's eldest adoptive brother, and by chance, she transmigrates into the story as his wife, Ethel Wallace. However, the protagonist receives all the attention, and Ethel is treated like an invisible outsider. On the day of her and Leandro's second anniversary, Ethel reaches her breaking point and demands a divorce, wishing never to see her in-laws again. But the Cassius family is powerful and unwilling to risk the humiliation of a divorce. Ignoring all Leandro's pleas, encouraged by his annoyingly virtuous sister, Ethel seeks out a bodyguard—Marquis Terrence "Tei" Freheiden, the emperor's illegitimate son and the story's antagonist. Fighting the Cassius family is an uphill battle, but through relying on the surprisingly kind Tei and her knowledge of the novel, Ethel is about to initiate the most scandalous divorce trial ever seen. [Written by MAL Rewrite]