Myriad Worlds: I Became the Grandpa Who Gives Away Treasures

The front door of my house underwent a magical change, and people from other worlds began showing up from time to time. Fortunately, they were all suppressed by the rules, and under those rules, I was invincible.

As the System awakened, I gradually became a blessing to the underdogs of the myriad worlds.

"This big shot is beyond anything I can put into words!"

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.