I got an SSS-Grade unique skill

On December 31, 2090… at 11:59 pm A large meteor comes hurtling into earth. But, contrast to what was expected, it was destroyed even before it lands. At the same time… Over 1 million of humans obtained the 'log-in system', where they can access the game called " World of Luck», and have a chance to travel and explore a fantasy-like world! Soon, 4 years had passed, Adam, the protagonist of the story, was walking along the road and was soon dumbfounded by what appears before him… [You received an invitation to enter the 'World of Luck'] [Do you want to accept it or not?]