The Demon King Has Sent You a Party Invitation

One of the few survivors of the Sailedofen disaster, Lande gets roped into becoming a hero.

The prophecy says the hero will slay the Demon King, defeat the demons, and save humanity.

The Demon King comes looking for him, only to realize this isn't a hero at all. He's a heart-stealing bandit!

So Lande braces himself for death, only to receive a party invitation from the Demon King:

[The Demon King] requests to join your party. Choose: A. Accept B. Welcome him

[The Demon King] requests to move in with you. Choose: A. Reluctantly agree B. Happily accept

So team up with the final boss, fight monsters, level up, complete quests, and fall in love!

With such a flirtatious teammate, the quests are sure to be thrilling.

Lande stares at the quest list, which offers "Clean up the town dump" and "Help Ms. Daisy weed her garden," and falls into deep thought.

Could it be that a quiet, ordinary life is what matters most?

Pairing: an innocent, unpretentious, unconventional Demon King top x a fake hero bottom with an overactive inner monologue who always says what's on his mind

The blurb's premise is just a gimmick, not a System novel. Fantasy setting.

Theme: Demon King and hero