Sighing, Tony shook his head as if trying to shake away the last vestiges of regret. Then he said: "Ten years ago, based on my father's research, I independently developed this time-travel device. My intention was to use it to travel back in time and prevent the tragedy that befell my parents. However, I didn't know what impact altering the past would have on the future. Perhaps those I cherish here would disappear as a result, so the time journey never came to pass.",Thor pointed at Guan Heng, turning his head to ask Iron Man, "Tony, is this kid the so-called 'Taoist' He doesn't look very impressive!",This action was originally a whim. Who would have thought that when the sword touched the flame, it let out a joyful cry, instantly sucking up all the dragon's heart flames!。