The separated brothers and sisters are the three brothers and sisters of the Bu family.
The mysterious Cheng Anna was caught by Zhao Honghua, the sister of Ivory Mountain. Anna told Honghua a secret and took her to the Temple of the Red Spirit King. In order to conceal their underground affair, Bu Qingyun and stocking Qianqian, who were showing off in the streets every day, discovered that a large group of children were exclusively applying for a patent for super paper airplanes at Diebu's house, and got clues about their younger sister Bu Qingxin.
The next day I found Anna under the wishing tree in Chinatown where only one person had made a wish for decades. It really took no effort at all! The Sekirei King really held a grudge, and Anna dared to tell the truth, so he came to kill Anna alone. After the Bu family united to defeat King Sekiling, the brother and sister finally recognized each other.
When did the brother and sister recognize each other in "Tekken Heroes"?
Bu Qingyun is considered the backbone of the Overseas Chinese Society. One day he and Qian Qianqian were walking on the street and accidentally saw a group of children making paper airplanes. Bu Qingyun felt that the paper airplanes seemed familiar, and at this time he recalled them in his mind. When they were young, their mother taught the three brothers and sisters how to fold paper airplanes, and Bu Qingyun followed suit.
Cheng Anna then told her personal experience from childhood to adulthood, and also told her purpose of staying at Peng's house. Only then did Bu Qingyun understand that everything Cheng Anna had done before was to avenge her dead father. After that, Cheng Anna lived with her family. It was finally a family reunion, which was a happy thing.