That Time I Got Reincarnated as a Slime, Volume 3 (manga) — Fuse

OGRE BATTLE After taking on the will and form of the Conqueror of Flames, Rimuru gains new, incredible skills and continues his journey to improve the conditions of his subordinates. But before long, Rimuru hears a distress call and finds his companions crushed by a motley crew of ogres! What quarrel do these menacing ogres have with Rimuru and the residents of the goblin village? And has Rimuru finally met a group of foes able to contend with his seemingly overpowered abilities?