Global Game: Ten Billion Spirit Energy Coins From The Start - Chapter 1681 - 1569, 15-year journey

“When I opened my eyes, I found myself as a character in a game. It was bewildering, but I thought it was worth a try. That was until I saw the skill given to me. It was [Opening Eyes], with no abilities whatsoever.”The story starts with the MC playing a game that is “Very Difficult”, so difficult, in fact, that no one has ever managed to kill the last boss. After 18 years of playing and, having the best attempt be at 30% of the last boss’s HP, he decides to try out a character that he never used.This character was the Slit-Eyed character. It had garbage stats and garbage traits. But, since the MC had ran out of options with every other character, he was trying to see if he could find any secrets with this new character. So he puts in his name ‘Zero’ and presses play… Only to find himself inside the game, as the Slit-Eyed character.

Step into a world where science meets the unknown, where mechas clash in brutal duels, and where every Biocore holds a mystery waiting to be unraveled.Follow Nioh, a genius weapons designer, as he uncovers lost technology, battles biomechanical titans, and pushes the limits of power, in an intergalactic thrilling adventure

This is a story of a man named Kim Sae-Jin, who one day, inexplicably wakes up as a Monster. Follow him and his perilous journey to get his life back as a Human, all the while growing even more versatile as a Monster in the process. This should be… complicated, somewhat.

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates