One Piece: Supreme Check-In System - Chapter 47: Voidreign Kingdom

A chance to change, to challenge destiny, making dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish!

- Description from Novelupdates

Amid the steam of the industrial revolution, mysteries surge beneath the surface. Cults and secret societies seek the extraordinary in the shadows, while hidden gods gaze upon humanity from the heavens.Forbidden knowledge, sacrificial rituals, and forgotten histories—mystery is everywhere.Dorothy, unexpectedly transported to this increasingly bizarre world, discovers that to survive and move forward, she must adhere to one principle:Knowledge is power.And forbidden knowledge?That’s an even greater power!

Freshman student Yang Dingtian possesses the Nine Yang Body, found only 1 in million. His Yang Fire is incomparably vigorous and thus, he cannot be near a female’s charms for his entire life. On the night of his 19th birthday, he decided to bid farewell to his virgin life. After stealing and tasting the forbidden fruit, he spontaneously combusted as the result!

In death he crossed over to another world; a world that held respect for Martial Power. His, originally, catastrophic Nine Yang Body was the Nine Yang Body that couldn’t be seen in a millennium! He was saved by a mysterious old man when he was at his last moments and the old man received him for a disciple, then betrothed his daughter to him. Thus, in this odd way, Yang Dingtian became the successor of the largest clan under Heaven, and became the number-one-beauty-under-heaven’s fiance.

- Description from Novelupdates

Mathew survived the entire two weeks of the apocalypse. A great score for someone blessed with brains over the brawn. Yet, even he fell after just fourteen days, giving his all to save the one person he cared for.

But why does a death looks like watching himself from the third person perspective? Is this the purgatory to watch over his own shoulders at the mistakes he made? A punishment for Mathew's sins to repeat those mistakes over and over again?

But wait, what are the three clocks in the corner of his vision, one of which only five minutes away from ticking out?