Shini Yasui Kōshaku Reijō to Nana-ri no Kikōshi - Chapter 89 - Altar of Vampires

This is a therapeutic romance novel that mixes psychology and science fiction.

Follow Chen Ming as he accepts disciples, establishes a sect, and fights his way in a world that deems him a cannon fodder.
He goes against any common sense using his wits and novel knowhow to finish missions and arm himself against his cruel fate.

- Description from Novelupdates

The most unlike Slytherin.

There is a saying in the Slytherin common room, “The little wizard who disobeys will be eaten by the Night Stalker.”

He is the master of the stars that shines at Hogwarts, the Night Stalker who is feared by his enemies.

The glory made him the pride of Slytherin.

When the Dark Lord arrived, he said those words,

“Weapons, I need a lot of weapons.”

With a staff in his left hand and a sword in his right hand, everyone would shout for him: “Damn the Sorting Hat, is this Slytherin?”

When the stars return to Hogwarts, John Wick’s light will shine on the entire wizarding world.

- Description from novelbuddy

Lady Mi Qing ran away from home to escape an arranged marriage. She is then confronted with the following wretched situation:

Card stopped. Money stolen. All she had left was ￥308.50.

In this strange city, her sole hopeful light was a small advertisement on a lamppost——

Elaborately Decorated, 100 Square Meters, 2 Room Apartment, Monthly Rent Only ￥299! If interested, quickly contact Mr. Xiao at 138XXXXXXXX!

Mi Qing immediately rushed over to the address listed.

Xiao Gu looked at the woman standing in front of him, brows slightly furrowed. When did he post an apartment rental advertisement?

- Description from Novelupdates