Comprehensive Manga: I Was a Master in the Age of Monsters

Hundreds of Ghosts, Heian Jing Bai Fei traveled to the turbulent and chaotic era of monsters, and at the same time awakened the master system. The system detects that you killed the S-class monster: Shuten Doji, and received the reward: King Arthur Swordsman. The system detects that you clicked on the Hundred Story Group and received the reward: King Hassan Crown Status The system detects that you have defeated Onmyoji: Black Seimei and received the reward: Unlimited Sword System The system detects that you prevented Yamata no Orochi's plan to annex the world, and you will be rewarded: Tiamat's fallen angel form. The system detects that you have rescued eight hundred bhikkhunis trapped in the Eight-Qi Swamp, and you will receive a reward: the projection circuit is fully open. In this way, he embarked on a road of becoming stronger while killing evil demons and ghosts while saving the world. Driven by fate, he and the heroic spirits must face powerful monsters from all ages. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.