Could it be that I am the cruel villain? - Chapter 7 - She is like a Mother with a Ruler in Hand

Transmigrating into a world of cultivation, you find yourself at the lowest rung of the sect's hierarchy. Everyone wants to bully you to gain some benefits. Fortunately, there are always a few junior brothers and sisters who are 'generous and understanding', allowing you to improve peacefully and secretly grow stronger. Years later, unbeknownst to anyone, you successfully become a deity within the sect. This day, your master visits you at the sect's request.'The upper echelons of the sect believe you have been diligent and loyal over the years, and though your strength is mediocre, you are an honest person, so they've found a marriage alliance for you.''An alliance marriage?''Not exactly. The other family has a rule: marrying into their family means taking their surname.'Is this... becoming a son-in-law who marries into the wife's family?

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

“World” is a game renowned for its remarkable freedom.

In “version 3.0”, I made the decision to maximize my focus on boosting magical abilities!

All stats now revolve around magic! But In turn, I embraced a substantial number of disadvantageous traits.

However, that is inconsequential. I am determined to forge the ultimate Wizard character, It matters little whether the character’s outward appearance resembles a walking corpse.

Yet… What is this?

I have suddenly transformed into that very character – a character with prodigious talent, yet unable to survive a single day without relying on drugs.

– The planet [Earth] has entered the abnormal state [Apocalypse].