I Am in Marvel with Unlimited Cards - Chapter 15: IMUC- - THE HIDDEN BASEMENT

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

Cross is a laborer and helper working in multiple construction sites and stores to pay his bills and food. The pay isn’t much, but he is content with his life. He has a job, a crappy rented apartment, and a girlfriend.

But it all shatters when the world changes one day. A strange phenomenon teleports everyone into a world of fantasy, magic, dangerous beasts, and mystifying creatures.

Everyone is given abilities, skills, and spells and can level up like in a game.

And that’s not all. They are transported in a medieval timeline where technology is nonexistent, and living is harsher than one might expect!

When Cross swipes his hand, a screen appears, and the first thing he read.

‖ E V I L S Y S T E M

S I D E Q U E S T ‖

* Insult Someone

Reward:

+100 EXP

* Spank a girl’s butt

Reward:

+1,000 EXP

‖ E N D ‖

‖ E V I L S Y S T E M

M A I N Q U E S T ‖

* Brake up with your girlfriend

Rewards:

+10,000 EXP

Egg (?)

Having read countless novels, he expected his cheat to finally activate, but he was disappointed when no such thing happened.In a world teeming with magical beasts and god-like Hunters, he toiled for years as a mere porter, his dreams of power fading.Just as he clawed his way to a chance at a skill, a dungeon devoured him whole. He fought for his life, escaping death by a whisperBut then, the Supreme Dragon System activates, revealing a horrifying truth:The heavens themselves had schemed against him! His years of suffering, his endless struggle it was all just a game for them.Now, with a roar that echoes across the realms, Klaus declares:“The heavens schemed against me, I will shatter the heavens!!”Get ready for Klaus's epic tale of betrayal, power, and a quest for divine retribution!

A mecha otaku is reincarnated into another world as Ernesti Echevalier (Eru). In this world there exist huge humanoid weapons known as Silhouette Knight. Dreaming of piloting those robots, Eru, with childhood friends, Archid Walter and Adeltrud Walter: together they will aim to become a Knight Runner, pilot of Silhoutte Knight.