Three Years of Sign-Ins in the Heavenly Prison, Invincible the Moment I Emerge

Yang Fan transmigrated to the apocalypse by accident. He thought he would make a name for himself and achieve great things, but instead, he was framed and locked in a maximum-security prison to await death.

At the critical moment, the sign-in System activated just in time. Not only did it help him escape from prison, it also set him on a path to defying the heavens and growing stronger!