Whispers of the Void: Psychopath another world?

( Hello there kind peoples, I am from the future and here to warn you folks that this may contain horror. Have a peaceful reading!)

Dante, a loner and introvert, finds himself in a mysterious situation where he is stabbed and left for dead. However, he wakes up to find himself saved by a talking cat who claims to be a god. The cat informs Dante that he has transmigrated into a new life and must now learn to live again. Dante discovers that he has lost his memory and is taken under the wing of a white-haired girl named Sylph.