Migawari de Totsuida Reikoku Kokuou wa Hatsukoi Aite deshita
The Cruel King I’m Marrying as a Substitute Bride is My First Love?!·身代わりで嫁いだ冷酷国王は初恋相手でした
A 28-year-old woman named Kanae Yano is unexpectedly summoned to a different world. There, she meets Rita Scryne, the daughter of Duke Zack, who is her exact look-alike. Rita and her father request that Kanae take her place in an arranged marriage with King Eugene Astaroth, a feared ruler known as the "Merciless Wolf." Kanae learns that the summoning magic can bring people to this world but cannot return them. With no other options, she agrees to the arrangement. When she meets King Eugene, she is surprised to discover that he is her first love.