Friends with the 2nd Demon King

Izuku Midoriya is feared across the land as the Second Demon King, a ruler of terrifying power surrounded by loyal demons. But what the world doesn't know is that Izuku is nothing like the tyrant he's expected to be. Instead of spreading chaos, he works in secret to protect humanity from the true threat, Muzan Kibutsuji, the First Demon King, whose cruelty has plunged the world into fear. During one of his demon's journeys, Izuku crosses paths with Tanjiro Kamado and his family. Despite his demonic aura, they show him unexpected kindness, and as Izuku decides to take them away from Muzan's wrath. Their compassion sparks a bond that changes a bond that changes Izuku's fate forever. Now, with Muzan growing stronger and darkness spreading, Izuku and Tanjiro form an unlikely alliance. One is a demon king fighting for redemption, the other a young slayer determined to save his sister and humanity. Together, they must stand against Muzan's forces and bring an end to his reign of terror.