: "A long, long time ago, there was an historical legend that there are seven dragon balls scattered within the world. As long when you gather all seven dragon balls and recite the incantation, you could summon the dragon, regardless of what you wish. The wisher are going to be fulfilled."? ??t n??c xa l?, anh ph?i ??i m?t v?i n?i nh? nhà ??y khó