The Hero's son and the ghost of the Demon King are the master and disciple!?

Earth, the son of Hero, the Hero who defeated the Great Demon King, is troubled.
Always expected to achieve great things, but unable to meet those expectations.
No matter the effort he puts in, and the results he obtains, it's never enough.
“You're a disappointment compared to your father.”
“Don't you know you're the son of the hero!!”
Living every day like this, Earth meets his destiny in the room containing his father's sword.

“Interesting. I will train you. I have only free time now.”

Earth receives special personal training from the Demon King just to get back at his parents and the world.
In the coming days, his parents, the heroes of the past, his first love, his princess childhood friend, the geniuses of the era, and the world will tremble before him.

Note: While initially released with the “What's Wrong With The Hero's Son Being The Demon King's Disciple?” subtitle, in line with the web and light novels, the manga switched to the new “Boy Meets Satan” subtitle by the release of the 1st volume.

Character Designer: Ryuutetsu

Additional Links:

• Official Raw Web Novel: Kakuyomu, Shousetsuka ni Narou