After transmigrating into Demon Slayer, Natsuki was turned into a demon by the Demon King.
He shouted, "Muzan, go bask in the sun!" and stepped into the sunlight.
When he opened his eyes again, he found himself in an ordinary everyday world.
From the start, he was picked up by a rich vampire woman, and began living a life of comfort, with food and clothes taken care of and all the blood he could drink.
Whenever he got a craving, he could go out and catch a rare-blooded young woman, savoring a delicious meal while gaining a Blood Demon Art.
If he ever got bored, he could open a portal and take a trip to another world.
Life was pretty carefree.
Of course, it would be even better without the super-strong magical girl who was always trying to smash his head in, or the useless angel who kept asking him for money!
Series included: Chuunibyou, Gabriel DropOut, Miss Kobayashi's Dragon Maid, Himouto! Umaru-chan, The Angel Next Door Spoils Me Rotten, Aho-Girl, Ms. Vampire Who Lives in My Neighborhood, Jahy-sama Won't Be Discouraged!, Wonder Egg Priority, The Girl I Can See, and more...
Other worlds to be decided. (He'll definitely return to Demon Slayer at some point.)