My Sister Took My Fiance and Now I'm Being Courted by a Beastly Prince manga volume 1 features story by Yu Sakurai and art by Kiduki Hoshikawa.

Cordelia, daughter of a countess, can’t seem to get married--mostly because her little sister Priscilla keeps stealing the hearts of her suitors. Ready to resign herself to a spinster fate, Cordelia is surprised when a handsome man suddenly courts her--and he’s a prince, no less! Prince Leonhardt, who possesses the power of a legendary lion, is a widely admired man but has his own quirks, such as pursuing Cordelia because he was drawn to her scent. How cat-like is this man?! A fun (and feline) fantasy romance!

My Sister Took My Fiance and Now I'm Being Courted by a Beastly Prince manga volume 2 features story by Yu Sakurai and art by Kiduki Hoshikawa.

Cordelia and Leonhart work together to reveal Katricia's scheming. With one scandal avoided, Leonhart works to help Cordelia avoid another. The prince talks with Cordelia's father about how Priscilla's continued interference with Cordelia's engagements has left both sisters with a stained reputation. To let the family name regain its polish, Leonhart and Cordelia must meet without Priscilla's interference. But Cordelia's not the only one with sibling troubles. Leonhart's brother Zayd has a grudge against his younger brother. How far will he go to settle the score?

My Sister Took My Fiance and Now I'm Being Courted by a Beastly Prince manga volume 3 features story by Yu Sakurai and art by Kiduki Hoshikawa.

By stopping Zayd, Cordelia has earned the title of “The Lion Saint” and received an engagement to Prince Leonhart. But her future sister-in-law Femina won't stand for it. She demands Cordelia refuse the position and her betrothal! Her tantrum is so childish and over the top that it's honestly kind of cute, but could this be a warning sign of how rocky a road waits ahead for Cordelia and her prince?