Leo, the mightiest hero who saved the world, found himself unwanted in the tranquil human realm due to his immense strength. The people feared him. Consequently, he was exiled and forced to seek employment in the Demon King's Army, which he had vanquished but now needed rebuilding.
The Army was grappling with numerous issues like excessive workloads and financial woes. However, Leo turned things around with his sheer power. While working there, Leo unexpectedly met Echidna and inquired about her invasion of the human realm. What she revealed was a startling revelation indeed!
