Read Manga I Fell for the Final Boss Who’s Destined to Kill Me online in English. Also known as Rasubosu Reisoku ni Korosareru Gishi desu ga, Kare wo Suki ni Natte Shimaimashita and ラスボス令息に殺される義姉ですが、彼を好きになってしまいました。

Fiona wakes up inside an otome game as a minor noble girl with a terrible role: the cruel stepsister who torments Clovis, the boy fated to become the final boss, and is eventually killed by him. Hoping to escape that ending, she chooses tenderness instead of abuse and tries to give him the warmth his original story denied him.

The plan should have been simple, but affection does not stay harmless for long. As Clovis grows attached and Fiona’s own feelings deepen, she realizes the person meant to destroy her may be the one she most wants to protect. Between the game’s fixed fate, the saintly heroine said to save him, and a love she believes she should hide, the story builds a sweet but tense romance around survival and forbidden devotion.

This series may appeal to readers who enjoy otome game reincarnation, villainess romance, and fantasy love stories with possessive emotional tension.