Master of Monster Synthesis - Chapter 13: The Troubles of an Undying Body

[Nakseong High School, the heads of 300 people exploded!] Lee Joon, an ordinary high school student.During the entrance ceremony, he was caught up in a strange phenomenon and died.[You have died.] [Restarting from checkpoint.] [Loading…] And then a message appeared before his eyes.『Welcome to Nakseong High School that is full of mysteries and secrets.Uncover the dark secrets hidden around the school, or fight against urban legends and myths to earn points and unlock special abilities.Then, gather companions and stop the resurrection of the demon king before you graduate.The world is in your hands.』

On the Yuan Continent, fantastic beasts and powerful cultivators exist. Their immense power is capable of shattering mountains and emptying oceans.

On this continent lives John Fenix, an unfortunate youth who is unable to cultivate and wield such immense power. He could only powerlessly look up to others and watch as they soared to heights unseen.

After a fortuitous encounter with a mysterious object, John finds himself able to cultivate. Determined to never feel powerless again, he sets out on a cultivation path filled with danger and excitement. Utilizing powerful cultivation arts found within the mysterious object, John sets out to write his own legend and ascend above all as the Immortal Asura.

In the foreign world, the martial artists dominate the world and the sword of the emperor controls the fate of hundreds of millions of lives! Long Yu, the number one killer on Earth, after dying, takes rebirth in this new world in an aristocratic family of martial artists but faces rejection because he is unable to practice martial arts.

- Description from Novelupdates

The world has changed into something like a game.

It resembles a survival virtual reality game where people were attacked by zombies and monsters.

And I was the last user of that game.