One Piece: Don't Worry, I'm a Doctor - Chapter 257: Glue?

Steven awakens to a nightmare. Transported to a brutal medieval kingdom on a faraway world, he wakes up as Kivamus, the exiled third son of a Duke. Now he’s the newly made Baron of a crumbling village called Tiranat, in a bandit-ridden frontier located within untamed forests. Here, survival is a daily battle, resources are scarce, and technology is a distant dream. Yet, he sees potential where the villagers only see struggle. He dreams of using his knowledge to forge a new future for Tiranat, a future fueled by industry. But the path to progress is not going to be easy. Managing a starving village in the coming winter and navigating the cut-throat world of medieval nobility is just the beginning. This is a slow-progression kingdom-builder story, with a lot of focus on worldbuilding and eventually, industrialization and tech-uplifting. The story is going to be very, very long. Settle in for a slow-burn slice of life, where the journey is just as important as the destination. Welcome aboard!

“Why is the thing you summon always so strange, can’t it be a little more normal?”

Lu Yu looked helplessly at the guy who was waving his tentacles in front of him.

“Who made me look up to see you every day…”

- Description from novelbuddy

Lucien, a guy who has nothing but the desire to save his mother. To get strong enough, he makes a contract with the demon of L.u.s.t. And now, only by making a great harem, will he gain the power to protect those dear to him.

Life can be very unfair most of the time, and Christopher is someone who knows this very well.Being an orphan, his chances of achieving great things in life were close to nil. But things change when he meets his lover. However, a series of events lead to his death.But that isn't the end. He wakes up in the body of someone just like him in another world, and with a system, one with an incredible ability.With his newfound cheat, he completely sweeps his way through the world and beyond.Angels? Demons? Dragons? Gods? Their titles don't matter, because in the end they will only have two options. Submit or die.