Kekkon Shoya no Deathloop: Nosuji Reijou wa Nando Shindemo Megemasen

Katrea, the only daughter of a country noble, accepts a marriage proposal from the influential Vrag family, captivated by the Duke's appearance, wealth, and similar age. On their first meeting, the Duke shows little interest in her, and on their wedding day, she overhears him mocking her family, which angers her. Refusing to participate in the wedding night, she is eventually taken to his room and dies before understanding what occurs. Awakening, she discovers she has returned to the moment before entering the Duke’s room. Each time she dies, she relives the same night. The question remains whether she can escape this deadly cycle.