One Piece: Don't Worry, I'm a Doctor - Chapter 308: Actually, That Guy... He’s a Doctor

Jack was bored with his life.A meaningless, mundane life with no thrill. He was a normal boy like everyone else, and yet his desire for something to change was bigger than most. He wanted to see something thrilling, to experience something that had never occurred before.And, as if his wish was answered, the world changed one day. Creatures called the Undead appeared out of nowhere and in a matter of hours, took over the world and along with it, reshaped Earth as people know it.This is Jack's journey in this world... From a normal boy to the peak of all the realms.[You have unlocked the Divine Records Blessing.][The True Ones know of your existence.]

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates

Rei just wanted to read novels in peace, no girlfriends, no drama, no accidental death by divine lightning meant for a cockroach…But for now, he is the son of a powerful duke, reincarnated into a fantasy world full of magic, monsters—and dangerously obsessed women.They were childhood friends of that duke son. They all are sweet noble girls. One is emperor’s daughter and one is my older sister. Now they’re grown up… and they all want one thing.And that thing is Rei.Welcome to a world where love means stalking, loyalty means stabbing your rivals, and marriage proposals come with blood pacts and fireballs and even my system mocks me. Rei fiancées battle each other daily and his life is a romantic comedy… except it’s also a warzone.Oh, and his final mission is marry the Demon Queen. A literal succubus overlord trying to conquer the world.Somebody please help him. In a realm of swords, sorcery, and yandere chaos. So, he can find peace or at least keep his limbs attached.