Boku no Dokuhime wa Kyou mo Kawaii

In a world where the battle lines between humans and demons are drawn in blood and sorrow, two living weapons find themselves bound not by war, but by a fragile treaty. Raphie, known across the battlefield as the "Poison Princess," is a demon of devastating power who leaves nothing but decay in her wake. Loren, the "Undying Knight," is her human counterpart—a soldier cursed or blessed with the ability to rise from death itself, time and again, to continue the endless fight. When their warring factions orchestrate a political marriage as a gesture of peace, the union is born from strategy and suspicion, a ceremony steeped in the reluctant compromise of two enemies forced to share a life. Yet, the moment Loren lays eyes on his new bride, the battlefield falls away. His fixation is instant and absolute, and his intentions shift from political duty to personal pursuit. While the world expects conflict and cold detachment, Loren's mission becomes disarmingly simple: to shower his reluctant wife with affection. Now, the undying warrior must navigate the treacherous and comedic terrain of married life, desperately trying to win over a princess who was never meant to be his bride—one charming, and hopelessly flirtatious, advance at a time.