A "precarious" situation in a public toilet unfolds as he finds himself devoid of toilet paper after using the facilities. He only hoped to find someone with a big heart for help but didn't expect that the System would arrive to his rescue. With a shining gaze, he thought that one often needs to encounter "difficulties" before unlocking the cheats in life.

As the System activates, it assesses his needs and grants him a roll of toilet paper as a newbie reward. His gaze couldn't help but get dull, and he wondered why he did not think of immortality or invincibility like the salted fish? He resisted the thought of throwing it away and used it with tears in his eyes.

He soon learns that its functions resemble a game, complete with check-in rewards and more. Unexpectedly, it could also allow him to travel to different worlds and attain unimaginable strength and rewards.

From moving mountains to overturning seas, suppressing demons to deifying gods, cultivating immortality with a harem of beauties, and more...

The magnitude of these unknown possibilities overwhelms him, sparking both excitement and anxiety. Though enticed, he's aware that recklessly venturing into foreign realms could prove fatal, even if it's just in neighboring territories. Seeking advice, he turns to netizens and quickly sifts through fantastical suggestions and meaningful insights.

After sorting out numerous noteworthy points, he checks in, unlocking an uncharted realm of possibilities!

These world check in is a good story