"My Favorite, Me, and the Death Flag."

The protagonist's favorite character is Prince Eugene, who appears in the light novel "The Fallen Saint and the Lonely Prince." He is cursed by a witch and transformed into a grotesque form, abandoned by those around him. Furthermore, even after falling in love with the heroine who breaks his curse, he is snatched away by his younger brother prince—a terrible fate indeed. And what awaits him after all that is death while protecting the heroine. How could anyone accept such a thing?! Upon learning that they have been reincarnated into the same world, the protagonist rushes toward their beloved character who is about to be cursed by the witch.