BTOOOM!

A 22-year-old unemployed man named Sakamoto Ryuuta lives with his mother and is known online as one of the top players of the combat game "BTOOOM." One day, he wakes up on a tropical island with no memory of how he got there. While exploring, he calls for help, but the person he sees responds by throwing a bomb at him. Ryuuta soon understands that his life is in danger and that he has been placed in a real-life version of the game. The question remains whether he can survive long enough to discover the reason behind his sudden situation.