Devilish secretary - Chapter 79 Why?

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.

Each stroke of good luck is a triumph over someone else’s misfortune.Jack Grim, the son of two legendary assassins, was born and raised on nothing but coldness — and the skills to spill blood.At seventeen, Jack received his final task as an assassin apprentice under his parents.“Succeed, and you’ll run your own organization — live the life you’ve always dreamed of.”For Jack, it was everything he had ever wanted: the chance to finally become the professional assassin he was born to be.He struck his target at midnight, succeeded, and received everything his parents had promised.But in the wake of victory came a pounding headache, a relentless fever—and then… transmigration.Jack now found himself in Raiden’s body — the keeper of the Book of Ashes, the heart of the Devourer, and the very book the coward Raiden had died protecting with his life.Jack had no desire to live in another world, magic or not. He simply wanted to return to his life as an assassin.But duty had other plans. The balance of this world now rested on his ability to protect the book — and like it or not, the responsibility was his to bear.

Orion was on his way back home from work.He was hurrying back home to take a nap while planning how he would spend his weekend as well, but while he was lost in thought, a truck suddenly appeared out of nowhere and the last thing he remembered was the truck barreling towards him before everything around him turned dark.However to his surprise, he didn’t feel any pain after having the accident. In fact, he couldn’t see anything.Everything around him seemed dark but when he opened his mouth to speak, he heard the gurgling sounds of a baby.Noticing that the one sounding like a baby was him, Orion tried to open his eyes to know exactly where he was, but when he did, the first thing his eyes fell upon was a stunning beautiful elf, holding him with the most tenderest of care.Not only was she his mother, she was also a queen as well and she had a beautiful sister who adored him just as much as his mother.Aside from this, Orion also noticed he had received a system which allowed him to grow and evolve faster than a normal High Elf but after finding out the huge role his mother played in eradicating the war between all races, Orion vowed to live a happy and fulfilling life with his mother, aunt and a few others he cared a lot about.

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