Delicious in Dungeon is far and away one of the most refreshing pieces of fantasy media to ever grace anime. While much of its mass appeal is owed to  Studio Trigger’s sumptuous adaptation , a core ingredient  of its success is creator  Ryoko Kui, who all but channels  shower thoughts one might have while playing a role-playing game into a wacky, eldritch, dungeon-crawling gourmet manga rich with diverse character designs and world-building. But what happens to all the thoughts from her brilliant brain that don’t make it to the page? Allow me to introduce you to  Doodles by Ryoko Kui: Daydream Hour , an art book that doubles as a bible for your future Dungeons & Dragons campaigns. © Ryoko Kui/Yen Press Mangaka explaining how the proverbial sausage is made isn’t new. In fact, JoJo’s Bizarre Adventure ‘s own Hirohiko Araki has penned two books  on  manga theory and practice , written expressly to craft compelling stories and characters.…