Mortal in a world that bends common sense

Henderson is a mortal in a world of Adepts, those with special abilities and supernatural strength. Henderson lives in his world of mortals and the Adepts live in their own world with each other. When Henderson's brother falls hopelessly in love with Adept, Henderson's life suddenly becomes fragile in the face of other humans who can snap his bones like twigs. Henderson's brotherly love fulfills his own happiness and at the same time, endangers his life. His actions thrust him into the unknown world. A world that bends common sense.