Alexender

Every twenty years, the world of Tower Defense arrives to take away people and make them participate in the survival game. You can get unimaginable rewards if you can win. You can also inflict severe damage to your country if you lose.
Pierce finds himself in this world, and sent to the Tower Defense alone, while other teams have a hundred people. 
Fortunately, he awakens golden hint system. Not only can he see useful alerts, he can also discover the fatal weaknesses of his enemies. Every monster he takes down rewards him with top-tier prizes. While the other players are still struggling, he is already swinging his swords to take the lives of gods.

Atlas Studios

Tower Defense Survival: I Defend the Whole Country Alone!

AtlasStudios

In the grayish-blue sky, an ice-blue dragon was flying at high speed. On its back were two small creatures. Ahead of it was a burning flame flying in the azure sky.

If it was looked at closely, one would see a huge red bird-shaped creature burning with flames.

If Pierce were here, he would be able to recognize it within half a minute.

The creature burning with flames was the boss of this invasion, Phoenix.

Even without the Elven Queen, Frost and Mel could point out that this creature in front of them was their target. After all, the powerful aura emitting from its body could not deceive them.

The Elven Queen was unable to guess what species it was. After all, this was no longer the world she was from. It was completely normal not to be able to guess it. There were too many creatures hidden in this world.

Just a Bird Burning With Flames