Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 3, Chapter 7: The Ghost of the Inn is Fatally Curseful

Step into a world where science meets the unknown, where mechas clash in brutal duels, and where every Biocore holds a mystery waiting to be unraveled.Follow Nioh, a genius weapons designer, as he uncovers lost technology, battles biomechanical titans, and pushes the limits of power, in an intergalactic thrilling adventure

(Genderbender + Yuri + Smut*ch43+)“…Adrei, this old man requests that you to feed me properly.”“Oh? Is it not a request from your daughter to ‘properly’ take care of your…unique needs?”“I get it, but my mouth is up here, you perverted dragon!”“Ah it seems the wind is blowing quite nicely today…”

This story is set during the end of the Sui Dynasty, a time where multiple powers struggled for supremacy and power.

Zhuang Feng is in his last year of high school, and he’s just moved to the city. He lives with his good-for-nothing cousin, who’s always on business trips falling for get-rich-quick scams, and his Saozi (sister-in-law), who tries to make his life miserable as much as possible. There’s one upside, though; she. is. freaking. hot. But one day, he found a piece of her underwear in the bathroom…. And unfolded a series of events that will turn his life upside down.

- Description from Novelupdates