Overlord Volume 09

The Magic Caster of Destroy is the 9th light novel volume in Overlord series, to be released on June 29, 2015. It details about the war between the Kingdom and the Empire is at its end. Ainz Ooal Gown enters the war and became known as the Magic Caster who destroys an army.

Short Summary
The war between the Kingdom and the Empire seems to be near its end, but the ruler of the Empire, Jircniv, also known as the "Blood Emperor", visits the Great Tomb of Nazarick which leads to Ainz Ooal Gown entering the war between two nations, changing the battle into a total war.