The Girl I Picked up in the Back Alley Turned out to Be the Heroine of a Bad Ending Otome Game

Could you let me stay at your house? "Hey, you'll catch a cold if you stay out here like this!" Ash Leben, a reincarnator into the world of an otome game, attends the Royal Academy of Magic in the lower-noble class. One rainy day, he encounters Fine Staudt, the game's main heroine, crouched in a back alley, soaked to the bone. She confides in him that she has been labeled a "villainess" by the Academy's Four Knights and her friend Elise and is being pressured to withdraw from school. Determined to help, Ash challenges the Four Knights to a duel, rescuing Fine from her plight. Afterward, Fine asks, "Please let me live with you as the caretaker of your estate," and thus begins their life together.