The Demon Lord Among Heroes

Shin is surrounded by friends and is cared by many, but he feels cold and empty. He considered nobody as true friend. Except there was one, but it broke him. Ever since the tragedy, Shin's heart became even colder. However one morning when he opened his eyes, he was greeted by a foreign scene. A king, a princess and priest-like people surrounded him and three other classmates of his. They were told three things: 1) This is a world of fantasy with unlimited opportunities 2) Currently, human kind is threatened by the advances of the demon-kind and the revival of the Demon Lord 3) They are summoned as heroes to save humanity The other three were expected to be heroes in this world. However, Shin was slightly different.