Twenty Years of Sign-Ins in the Heavenly Prison: I'm Invincible After My Release

Han Mu transmigrates into a fantasy world as a crippled crown prince, imprisoned in the Heavenly Prison.

In this desperate start, he activates a bizarre sign-in System!

It can even let him choose a character to sign in as and gain any of their skills or items!

[Host chose the Blazing Sun Old Demon. Sign-in successful. Obtained the Blazing Sun Divine Art.]

[Host chose the Ice Profound Female Emperor. Sign-in successful. Obtained the Ice Crystal Soft Jade Divine Palm.]

Huh... It seems something strange has slipped in there.

Four years later, a much stronger Han Mu breaks out of the Heavenly Prison.

He sets his sights on the throne and ushers in an age of boundless prosperity!