Vengeful Weapon, Tears of Poison(2022)

Seiryaku Kon Kougou wa Fukushuu no Doku ni Saku

Amelia was born a princess, but has never been treated as one for her entire life. After her mother’s tragic death, she spends her days being abused by her half-siblings. The only time she is treated as a princess is for a political marriage to Noam, the emperor of Saulverka. Freed from her family’s clutches, Amelia is ready to put her past behind her... until she learns about the truth behind her mother’s death. With fury and a mysterious magic simmering in her blood, Amelia begins her journey to achieve revenge against her half-siblings.

(Source: Tappytoon)

Editor note: This comic contains depictions of domestic violence, non-consensual sexual acts, and incest.