FYI, the first few chapters are basically a prologue, and are way deeper in the genre of a tragedy for world building and MC backstory setup. Once MC starts his 3rd life in a few chapters, it tones down quite a lot (minus one further tragedy to setup his 3rd life for the rest of the story).
I say this so that people don't get turned off by thinking it'll be an tragedy edgelord manga (or suckered in and then bait-and-switched).