Douluo Dalu: Sword Immortal Wushuang

Traveling through the Douluo Continent, becoming Tang San's older brother, he got a sign-in and clock-in system, "System: Young man, do you want to become stronger?" Then just sign in and clock in. Products produced by the system must have high-quality products. There is no strongest, only stronger. Douluo Continent is just a starting point, and the sea of ​​stars is the end.