The Song of My Thu'um

"Existence? Who am I? Memory? I do not remember anything"
These were the words of our protagonist after perishing from his past life and hence for those words, the reasons were unknown, and so his past existence and memories are. Join the protagonist explore the unknown world they were reborn into. And help them find and restore pieces of their soul. Each soul restores remnants of their past and unlocks greater power for greater purposes.