My Reincarnation as a Slime. Book 2

After the death of the heroine Shizue Izawa, who shared her body with the fire demon, Rimuru, inheriting her appearance and ambitions, isolates himself in a cave to learn to use the power of Ifrit when he suddenly hears a call for help. Rushing to the scene, he sees that his friends have been defeated by ogres.

Barely managing to overcome this crisis, Rimuru faces a new one: a two-hundred-thousand-strong army, led by a 'Catastrophe' class monster, the Lord of the Orcs, invades the borders of the Great Jura Forest.

At the request of the dryad Treyni, the guardian of the Great Jura Forest, Rimuru promises to defeat the enemy leader and plans to unite forces with the ogres, however…