Zhutian: Starting from Douluo, we recognize our adopted sister!

Ling Tian accidentally crossed over to the Douluo Continent where soul masters are revered. Fortunately, Ling Tian was bound to the [World's Strongest Sister Recognition System] and he could get generous rewards as long as he recognized his sister. At this point, Ling Tian has gone further and further on the road of recognizing his sister. [Congratulations to the host for recognizing my sister Xiao Wu, reward: instant upgrade card for level 90 soul power! ] [Congratulations to the host for recognizing his sister Zhu Zhuqing, and the reward: Encyclopedia of the Holy Book of Medicine! ] [Congratulations to the host for recognizing his sister Xiao Xun'er, the reward: Heavenly Intermediate Martial Skill, Great Desolate Prisoner's Finger! ] [Congratulations to the host for recognizing Queen Medusa, reward: Emperor's [-] Style! ] ......... All living beings in the world: Don't you only recognize your adopted sister? ...