Betrothed to My Sister's Ex

Marie is the second daughter of a poor baron and lives in a household where favors go to her dazzling sister and not to her. She feels more like a helper than a rightful heir, and her talents are often overlooked at home. Outside, a chance encounter with the charismatic Count Kyros Granado sparks instant interest, and he begins pursuing Marie. A misunderstanding during their first meeting leads the Count to propose to Anastasia instead, reshaping the family plans. When a sudden turn of events changes Marie's life, she finds herself drawn into a new arrangement that tests loyalty, resilience, and how she sees herself. The show blends humor with poignant moments to explore family, social expectations, and personal growth.

Created by Kenta Ihara and Tobirano, this animated comedy drama arrived in 2025 with a playful yet pointed tone. The cast features Rena Motomura as Marie and Daiki Hamano as Kyros Granado, supported by Minami Tanaka and a supporting lineup.

Audience early response sits at an 8.0 out of 10 from 22 votes, signaling a warm reception from viewers who enjoy its balance of wit and sincerity. The series quietly tackles class pressure, sibling rivalry, and the search for personal identity through its characters.