Traveling Through the Apocalyptic World as a Salted Fish

In the Last Days, Salted Fish, All You Want Is to Eat and Wait for Death!

That kind of ridiculous apocalyptic novel, where you travel through the book to the end of the world and find out that the male protagonist is reborn. The character did very bad things to the male protagonist in his previous life, so he will die miserably, and then he wants to die.