Moto Sekai Ichi'i no Sub-chara Ikusei Nikki - Chapter 1: A measly despair

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

Luis, a poor 17-year-old boy, tries his luck at becoming an Awakener to change his fate. However, his dreams are shattered when he fails to awaken a Special Spirit and is instead saddled with a 5 million dollar debt by their planet's colonizers, the Flying Star Empire.His life seemed doomed—until a mysterious system suddenly appeared in his head: The Monster Transformation System. It gave him the power to transform into any monster or animal he had ever seen.From a cat to an eagle, even a horse, Luis begins to understand that his power may not come from Spirit... but from the ability to become any monster.

In the previous life, Yuzhi was arranged by her best friend to marry a rough man from the countryside, and she felt resentful.

He failed the college entrance examination and had no hope of returning to the city, making the family restless.

Satisfied with the divorce, she returned to the city happily, but what greeted her was one disaster after another.

A kind uncle, a kind cousin, with a sinister face undoubtedly revealed.

The man who had hated her for ten years was burned beyond recognition in order to save her.

In the end, she failed in revenge and died tragically.

Returning from rebirth, at the scene of the college entrance examination, there is still time for everything.

The unfinished revenge in the previous life will continue in this life.

People who didn’t have time to love well in the previous life, love with heart in this life.

I just didn’t expect…

The dead father returns with glory.

The missing mother returns with a high profile.

There is also her mother-in-law’s husband who has disappeared for more than 20 years and her old father-in-law who has disappeared without a trace, all of them are awesome.

The husband is a talent, the son is a genius, and the daughter is a general. She has become the family’s favorite.

- Description from novelbuddy