MTL - Extract Skills and Explore Dungeons (Random Skills: Exploring Dungeons) - Chapter 872 Supreme Offense

A boy who lost his love for Formula racing after his father died on track, bringing calamity to his family. Left to care for his mother and sister, Luca does all he can to make ends meet. But it seems that every step he takes keeps pulling him back to the asphalt, and one sudden endeavor changes his life completely. [SYSTEM INITIALIZING......] [SYSTEM MERGING COMPLETE!] [Congratulations, you have attained the Formula 1 System] Luca rekindles his love for Formula racing as he strives to find his footing in this world. Rivalries and conspiracies may try to weigh him down, but Luca is determined to emerge victorious. [THE FORMULA 1 SYSTEM, A SYSTEM THAT WILL HELP HOST BECOME THE BEST RACER IN THE WORLD]

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

Leon and his father, Artorias, are the last remaining scions of a once powerful and illustrious family of lightning mages. After barely surviving an attack that destroyed their home fifteen years ago, they now live in the dangerous Northern Vales, a desolate wilderness far away from civilization. But those who want them dead are strong, patient, and relentless, and it is only a matter of time before they find the two they seek...

Born into a wealthy family, Gu Shenwei was spoiled and carefree. However, at the age of 14, his entire family were brutally murdered, and he was caught by some bandits who sold him into slavery. As a slave boy, he entered Golden Roc Fort by chance and found the man who had slaughtered his family. He endured insults and worked hard to improve his kung fu while working as a slave boy. He learned from and plotted against his enemy under the enemy’s nose. He became increasingly ambitious as he became more and more powerful. He would only be satisfied if he completely destroyed his enemy—by fair means or foul. Gradually his bitter experience turned him into a totally different person.