We have:

• Two pieces of bikini and leotard armour haunted by spirits that the MC conveniently finds in a dungeon. To be fair, it takes a while for the spirits to gain a human form, so I'll give the author that much.
• A 290 year-old ghoul who apparently looks like a pre-teen human girl with grey skin (that's right, the author put in an "I'm actually 9000 years old!" loli). Also, ghoul women look exactly like human women aside from skin colour but the ghoul men look like monsters with the head of lions. Another boring trope.
• Multiple other ghouls of various ages really desperate to get pregnant by the MC (one of whom is a former prostitute)
• Another former prostitute, but a high-ranking vampire this time
• A Titan princess ghost
• And more to come! I assume, because if a new character is introduced with particular emphasis on their b**bs and ass, you can assume she'll become a harem member.

• The first reincarnator is a completely irredeemable a**hole. I'd even go as far as to say he's worse than the other heroes in The Rising of the Shield Hero - at least they f*ck up because they're just dumbasses. This dude literally goes around and r*pes and mu*ders people as he pleases to get sh*t then attack the MC.
• Princess instantly becomes a harem member. At least the MC is 7 at this point instead of 1. Amazing.

It's possible that the author turns things around and doesn't have any more ridiculously 1D as*hole reincarnators (we get a brief intro to the next three and they seem okay at least), but I just don't have that much faith in this story anymore. It's your stereotypical power fantasy harem isekai with a dash of monster girls and a dash of revenge p*rn à la ShieldBro or hell, Nidome no Yuusha.

Except the revenge p*rn isn't even fun because some of the revenge targets are sympathetic (ex. Heinz, who's actively doing his best to atone for his mistakes since the moment he made them, and the reincarnators who aren't a**holes and didn't know that MC was the Undead being experimented on back on Origin). And yet the MC still wants to mu*der Heinz and his friends, and the MC still expects the other reincarnators to get on their knees and apologize profusely for the crime of... not being mind readers?

The MC isn't being written as the most sane person, sure, so it might be a deliberate narrative choice and he's going to undergo character development and let go of his hatred.

Or not, because again, this author relies waaaay too much on stereotypical tropes.

Ok, the incident in question is basically at the start of the story. He, a Dhampir, is born in a nation that hates vampires. His mother is ratted out by villagers, captured by adventurers and vampire hunters, and is tortured and burned to death. He escapes, returning a few months later. The adventurers and Vampire hunters are way too strong for him, and have left, leaving the villagers who ratted his mother out. The hunters who ratted her out were killed, and the villagers who stood there and watched and cheered on the spectacle were punished.

Now most people expected him to massacre the entire village in vengeance, instead he didn't kill any of them (again, aside from the hunters who personally ratted out his mother). Instead, he turned the mayor's house, the Adventurer's guild building, the defensive wall around the town, and the fields growing crops and fruit for wine (the towns main export) into golems, and made them all run away from the town. Now, most people view this as too kind, but I love this vengeance. I am so bored of MC's simplifying their vengeance by killing everyone. This vengeance set the village back decades. The wall had to be rebuilt to protect the town from monster attacks, the mayor had to wait for it to be rebuilt to start rebuilding his house, the crops for the year were mostly ruined, and the orchards would take years to regain. He also spoiled all the wine in the village, and killed all the bacteria that would help ferment the alcohol, so that also would take a long time to fix. As the final nail in the coffin, the mayor was about to be promoted for helping end a "dangerous Dhampir." That promotion was canceled. All in all, I found it to be one of the most satisfying acts of revenge I ever seen, in books, movies or manga.

his revenge against the ones who killed his mother while not immediate, were fulfilled, with the exception of one...

his soul is made out of pieces from four dead heroes, and was ab*sed, experimented on, and was treated like he was disposable by the dck god

It is incredibly annoying how the author keeps introducing new character every other chapter, and does not sees how it destroys the world. As it is on chapter 120, we are expected to remember at least 30 names from his close allies, which by the way have different races and abilities.

MC's mother got tormented in public, laughed at, and burned alive at stake. MC even immediatly develop mental corruption skill from level 1 straight to 10 by learning what happened to his mother. By this point readers are all excited for a massive revenge plot, right? But no, just a few chapter later, MC turned into a completely soft hypocrite. He doesn't kill the villagers who discriminated his non-human mother but just punish them by destryong the village's farm and walls...

The story seems like your average reincarnation story of a heroic but self hating MC, who lived a fairly tragic and sad life bordering on almost constant child ab*se and neglect, dying while attempting to save others. Unfortunately when he and the rest of the group picked up by this "God" are being divvied up their shares of good luck, our MC gets snubbed because of a clerical error and gets nothing, which would be fine if that meant only not getting unnaturally lucky or cheat powers, but it also meant that anything bad could and did happen to him in his reincarnated life. He lives that Life and dies in the most tragic ways possible in that sate and when he gets back to god of middle management, Rodcorte, he is rightfully angry. But instead of apologizing, that god decides it is a better idea to double down on his mistakes while refusing to acknowledge that he is right to be angry at being literally and absolutely not figuratively tortured for the full length of his short life and finally mu*dered by people who hoped and expected to be his friends, and forcefully reincarnate our MC again in yet another world, but this time, he not only gets no luck or blessing, but is instead cursed by that god because reasons.