MTL - Marvel: Start with God of Destruction - Chapter 13

I, the mighty Telepath Starlord, got banished into the mortal world. The days in the mortal world are much better than those in heaven! Everything is here — money, authority and most importantly stunning beauties! I am from a rich family. Yes, I am indeed wealthy now. The kind of wealth where you would not want to displease me. Domineering CEOs, military big shots, business geniuses, you name it — I know them all! I know everything you are thinking about. You can’t defeat me anyway, how are you going to go against me? A century in the mortal world is only equivalent to a hundred days in heaven.
As an urban banished immortal, I will enjoy the heck out of my time in the human world and a huge commotion would arise in heaven!

- Description from Novelupdates

Three Days of Happiness is a novel by Sugaru Miaki, also known as Fafoo. It’s a rewritten version of the story originally posted to 2ch.

The premise of the story revolves around a shop where one can sell away the remaining years of their life, and the consequences of doing so.

“I Say A Little Prayer” is a short related story which was posted along with the novel’s release. It spoils some things about the main story, but nothing major.

Akira Kuromiya is just an average high schooler who gets killed by a robber. He wakes up and is now a chicken!? Even worse he becomes the familiar of a girl who's apparently the heiress of a powerful clan.

That was for a short while though, as he was abandoned and woke up to find out he, now she, is trapped in a deadly magical forest with all sorts creatures trying to kill her.

The world she finds herself is one of magic and monsters like the manga she's been reading. Akira, now Hinotori is trying to live her life as a chicken in another world!

In the Year 30XX… Humans have long been discovering the wonders of the universe and exploring the great galaxies beyond the milky way.

They are not alone.

The universe is primal and untamed with civilisations pitted against one another in battles to decided life and death.

Mankind is one of the weakest races but have discovered cultivation techniques that morph their bodies and grant them unimaginable power.

Sui Meng was just an ordinary girl who woke up in the body of sixteen year old Sophie Peterlor.

Sophie is the half human hybrid of a prestigious duke house but faces discrimination based on her racial heritage and apparent lack of cultivation talent.

This changes when Sophie discovers a cultivation manual hidden in the necklace given by her late mother.

'Spider Whisper Art'

Sometimes power comes with a price…