To Save the World, Can You Wake Up the Morning After with a Demi-Human? #1

This first volume of the romantic comedy manga series introduces a world where demi-humans exist and a hero must navigate the awkward aftermath of a life-or-death battle. The story follows a young man who, after a fight to save the world, finds himself waking up next to a demi-human girl, leading to a mix of action, humor, and relationship complications. This volume collects the opening chapters of the series, setting up the premise and key characters.