MTL - Breaking up, No Joke - Chapter 174

Stranded in a world not his own, in a body not his own, Kaden finds himself stuck as a low rank marine in treacherous waters in the middle of an ocean where only the strongest can survive and a count down until a war that would shake the oceans and the very world itself erupts, where the kings of the sea will devour the chum. Gamer System. Insert.

One day I got a younger sister.Only I know her true identity.

This was a fragmented and disorganized world, this was a place that had been forgotten.

That day, was the most frustrating time for Ning Cheng, when on that day, he was abruptly brought here.

Because this world had Ning Cheng, who would imprint his name in the vast heavens, it would finally shine in the endless universe!

- Description from Novelupdates

Kang Min-hyuk, the loser of the checkpoint, gained a high-level magical civilization and everything changed.