7th Time Loop: The Villainess Enjoys a Carefree Life Married to Her Worst Enemy! (ループ7回目の悪役令嬢は、元敵国で自由気ままな花嫁生活を満喫する) is a Japanese light novel series written by Touko Amekawa. The series originated on the Shōsetsuka ni Narō website in February 2020, before being published in print with illustrations by Wan Hachipisu by Overlap beginning in October 2020. As of December 2023, six volumes have been released. A manga adaptation with illustrations by Hinoki Kino began serialization on the Comic Gardo website in December 2020. As of December 2025, the series' individual chapters have been collected into eight volumes. An anime television series adaptation produced by Studio Kai and Hornets aired from January to March 2024.
Premise
A young noblewoman, Rishe Weitzner, has her engagement to the crown prince annulled—an event she has now experienced for the seventh time. Trapped in a recurring time loop, she has made different choices in each life, yet every timeline has ended the same way: her death at the age of twenty, five years after the annulment, as a result of a war. In her seventh life, she encounters Crown Prince Arnold Hein of the neighboring Galkhein Empire, the man responsible for instigating the war in all of her previous lives. This unexpected meeting presents the possibility of a dramatically different future, one that may finally allow her to survive beyond the age of twenty. Retaining vivid memories of her sixth life, Rishe accepts Arnold’s proposal of marriage under several conditions, including abstaining from official royal duties, maintaining personal distance from him, and living as freely as her status allows. Despite her stated intentions, her position as crown princess compels her to apply the knowledge and skills she acquired in her past lives to improve conditions within Galkhein. As she works to stabilize the empire and avert the war Arnold is fated to begin, their partnership begins to reshape the course of events, offering hope for a more secure future than any she has previously known, and she wonders just what made Arnold's heart grow cold.