*10 years ago in the year 2023, when a mysterious black tower appeared everywhere. One day people began to coming out of the tower and sharing their experiences. They said they were sucked into a portal and ended up inside the tower where they gained amazing powers if they conquered, they could get great rewards and mythical items like a golden ticket that let ordinery people enter and gain powers too. Meanwhile you dream of buying the ticket and entering the tower one day but suddenly...*