In the thirty-third episode of Sacrifice to Heroes, Zhao Xinjiu and Qian Xiaohu came to Song Fei's house, and the two brothers recalled their friendship for many years. Yue took the mushroom to a safe place and waited for Zhao Xinjiu and them. Soon their residence was bombed.

Yagyu surrounded Seinfeld's home with people. Zhao Xinjiu couldn't bear to hit Seinfeld and let Seinfeld kill himself. Seinfeld told Zhao Xinjiu before committing suicide that Yagyu had surrounded his home and could retreat from the kitchen tunnel.

The story of Seinfeld's suicide in Sacrifice to Heroes;

After Seinfeld committed suicide, Zhao Xinjiu and Qian Xiaohu joined Chen Lili and prepared to leave Shanghai the next day. The inauguration ceremony of the Avenue Government was held as scheduled. When Zhao Xinjiu tricked Liu Sheng into getting on the bus and preparing to leave Shanghai, he learned that Wang Jichuan, the murderer who killed Commander He and 60,000 soldiers and participated in the Nanjing Massacre, would attend the inaugural meeting of the Avenue Government and decided to sneak out of the car to assassinate Ji Chuan.

Zhao Xinjiu sneaked into the inaugural meeting of Avenue House and was about to assassinate Yoshikawa. The sudden appearance of yagyu disrupted Zhao Xinjiu's plan to assassinate Jichuan and turned to assassinate the traitor Fu.