A hugely popular VRMMO with about 300 million players. Naoki, who started playing the game at his younger brother's insistence, was casually enjoying the virtual... more>> space with the tank class he chose without much thought. One day, due to the actions of a mysterious developer, nearly half of the players become trapped in the game. Naoki's brother was one of them... In the transformed game world, a game over means death in the real world. Naoki, a beginner who dived into the dangerous game world to save his brother, finds himself in a dire situation with only 1 HP when faced with berserk monsters. However, the tank class he chose harbored a powerful skill that no one knew about. <<less