The Book of Time Across Dimensions

The poem of swords and magic has begun. The throne in the heavens remains unclaimed, for its glory comes hand in hand with loneliness.

Mu Luo, tormented by illness in his previous life, is dead.

On the road to the afterlife, he unexpectedly finds a strange book and sets off down a path of no return.

He transmigrates between worlds and experiences a fantastical life.

(The synopsis isn't great. This is my first fanfic, written mostly for fun, but I'll do my best! The story starts in the world of Honkai Impact, with other anime mixed in later. Please excuse my poor writing...)