Naruto: I Am Not Really Related - Chapter 17: The Name Is Danzo!

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.

Then placed into a high-school setting, Lin Yi is tasked by the chairman of a top-tier multi-billion company with bodyguard duty for non-other than his own daughter, a certain little Miss of said high-school.

His enemies, once ranging from drug lords, mafia bosses, political figures, and national leaders, are soon replaced with spoiled kids who happen to have rich papas and mamas, and Lin Yi finds his intense expertise and high-threat skillset misused, and very underwhelmed…

But he does get a harem cast as diverse as his old enemies, so Lin Yi decides that, for the sake of messing around with girls as an invincible entity in a down-leveled environment, leaving his bloody and death-filled war days behind is something he’d definitely want to strive for.

- Description from Novelupdates

She wanted to be a Necromancer, but awakened as a Saint! Somehow her summoned heroes are all undead?How will the church react when their Saintess summons a skeleton in place of a mighty hero? Sofia isn’t too keen on finding out.To many a summoned hero, this world looks oh so familiar. Beastmen, Dwarves, Trolls, Dragons and Elves!Saints, adventurers, dungeons, maybe an evil demon lord to be vanquished?A video-game like system! Classes, skills and levels!Although... why is the system even a thing to begin with?Do gods really choose saints like you pick your next meal?There are great powers at work beneath the surface, this is their world, and you're living in it.Follow Sofia as she unknowingly gets tangled in power struggles far beyond what she had bargained for.Be ready for a wild ride. Break a leg, skeleton!

so, reincarnation huh?“a lot of good... a lot of bad... balanced karma.” “good news you get one boon to bring with you to the next life. unfortunately for you though, you don't get to choose. totally random. ready?”join Apollo in his new life where through sheer luck (good or bad?) is raised by an all hungry, all dominant and all loving hivemind who will burn the galaxy just to see him smile.