Mirror of Splendor

Zhao Feng obtains a heavily rusted bronze square mirror. This mirror does not reflect faces—it summons the dead. By using his own blood as a guide, he can pierce the barriers of time and draw forth those buried for centuries from the mirror into the present. But power always comes at a price. Each summoning, the ancient mirror gnaws at his flesh and spirit. The summoned spirits each have their own obsessions, and the stronger ones may even erode his mind. He originally thought this was merely a weapon to preserve his life. Only as he continuously raised the level of summoning did he glimpse the terror deep within the bronze mirror. Fierce generals of past dynasties, malevolent spirits of chaotic eras, and ancient beings erased from historical records all slumber and lie in wait within the black mist. The mirror reflects the splendor of a thousand ages, and also unleashes boundless calamity. When ancient shadows stir and threaten to emerge, Zhao Feng finally understands that what he holds is not a chip for victory, but a door leading to an abyss of eternal ages. — Description from novelcodex.org