The Freak Show Foreman - Chapter 180 Demon in the Bottle – 19

Weary reader, it is an honor that you have chosen this book amidst the heavy, dim library.Regrettably, this book is unwell.Your fingers should be able to feel the raised growths on the surface of its cover,Words written in bygone days are like parasites rooted in the pages, hoping for someone to observe their wriggling,To feel, to decipher, to touch the essence of this ailing story.If you insist on borrowing this book, please make sure to regularly check your own physical condition.

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

The hearse with the weird odor slowed to a stop before the entrance. The sound of pebbles could be heard bouncing on the ceiling. There were footsteps coming from the corridor, and there seemed to be someone sawing next door. The door knob to the room rattled slightly, and the faucet in the bathroom kept dripping even though it had been screwed shut. There was a rubber ball that rolled on its own underneath the bed. Wet footsteps started to surface one after another on the floor.
At 3 am, Chen Ge held a cleaver in his hand as he hid beside the room heater. The call he was trying to make was finally answered. “Landlord, is this what you meant by ‘the house can be a little crowded at night’‽”

- Description from Novelupdates