Healer, the strongest cheat

Right after jumping off the roof Masamune was caught up in his classes transition to a new world. A throne hall, the students had all received high-class jobs such as Sage or hero. Except for Masamune, who became a healer, the weakest known occupation, cursed at and called incompetent, he alone is banished. After wondering the darkness, Masamune who received the skill [mischief inversion {extreme}] through inverting the healing magic gained the ominous magic [Encroachment Wave]. Now with his strongest skill, Masamune swore his revenge. Demons and the white cat tribe, precious companions he met on his journey. Together they explore the new world.