Wenwu then told a traumatized Shang-Chi that "A blood debt must be paid in blood" before asking him if he wanted to join him in his quest to kill his mother's killer. After learning of the identity of his mother's killers, Shang-Chi accompanied Wenwu to a bar, where Wenwu attacked and killed several Iron Gang members in an attempt to find their leader.
Shang-Chi was present when Xu Wenwu decided to reclaim the rings and rebuild his army. Shang-Chi and his father go to confront the Iron Gang He then ran outside and held his mother's body as his father returned home and saw the carnage. His mother sent him and his sister, Xu Xialing inside, where they watched from a window as their mother was killed by the Iron Gang. While Ying Li was teaching Shang-Chi the special martial arts style of the Ta Lo people, the Gang barged through the front gate.
The family led a happy life until a past rival of his father, the Iron Gang, attacked their home. One day, after his mother told these stories, while folding origami dragons, she gifted Shang-Chi a green pendant necklace telling him that it could lead him home if he ever got lost. During his childhood, his mother would often tell him about how his father had been the wielder of a set of mythical rings for thousands of years, how she and his father met, and the legend of Ta Lo and the Great Protector. Shang-Chi was born to Xu Wenwu and Ying Li and was raised at the Ten Rings Headquarters in the mountains of China. 1.2.6 Escape from the Ten Rings Headquarters.1.2.4 Attack on the Golden Daggers Club.Returning home, he began studying the rings when they emitted a signal. When his father sacrificed himself to save him, Shang-Chi inherited his mystical rings to defeat the Soul Eaters. Eventually, the Ten Rings targeted Shang-Chi once again, so he joined forces with Chen and his sister Xu Xialing in order to oppose Wenwu in his quest to breach the Dark Gate of Ta Lo, which unleashed the Dweller-in-Darkness and the Soul Eaters. Seeking to start a new life outside of his father's shadow, Shang-Chi fled to the United States of America, maintaining a peaceful life in San Francisco under the name Shaun with his friend Katy Chen. Since his childhood, Shang-Chi underwent a brutal training regime that turned him into a formidable martial artist however, on a mission to avenge his mother's death, he chose to abandon the Ten Rings and leave his family past behind. Xu Shang-Chi (Chinese: 徐尚氣) is the son of Xu Wenwu, the founder of the Ten Rings. Start a new life." ―Shang-Chi to Katy Chen