What on Earth Is Going On with These Grave Robbers' Chronicles Check-ins That Keep Me Alive?

[Male protagonist + no romance + slow burn + happy ending]

An office worker who's tired of life and teeters every day on the edge of deciding whether to keep living dies in a car accident and gets bound to a check-in System. As long as he completes his tasks, he can stay alive.

Lin Shian says he doesn't want to live anyway, so if he dies, he dies. But after the System pesters him relentlessly, he reluctantly agrees to the binding.

Who could have guessed he'd boarded an incredibly shady ship? At first they called him Anbao, then they told him to go die.

In the end, he discovers it was all a lie. His memories are fake, his personality is fake. So what, if anything, is real?