The Strange Apocalypse of Rebirth

[Rebirth in a weird apocalypse] A weird apocalypse + rebirth + underworld alchemy In the strange apocalypse, money has no effect and it is difficult for human beings to survive. The protagonist is reborn with past life experiences. The protagonist struggled to survive in his previous life. After his rebirth, he faced strange phenomena again. The protagonist sharpened his will, showed wisdom and extraordinary courage in difficult situations, made friends with allies and enemies, and wrote a new chapter of thrilling adventure. In the reborn world, how do they resolve difficulties, face new challenges and opportunities, bravely explore, and solve puzzles and revelations?