Douluo: New world with an upgrade system

"I never thought such magical transmigration could happen to me..." The young man muttered in a low voice. The young man's name was Ling Yun. Originally, he was just an ordinary college student on Earth. However, while walking back to his house after classes, a red bolt hit him on the head and sent him to this place. It is worth noting that, the person he possessed now was also named Ling Yun. Just one more name, Duan Ling Yun.