In the TV series " Joy of Life," Xie Bian was the hatchet man and bodyguard of the Qing Kingdom's second prince, Li Chengze. His character's ending was not clearly stated in the reference materials. Gundam was a character in Joy of Life, and the reference materials did not mention his ending. The Gundam in the Gundam series and the Gundam in the Gundam SEED were not the same characters in Joy of Life, so they could not be used as a reference for the ending of the Gundam in Joy of Life. Sorry, based on the information I've retrieved, I don't know how to answer the ending of Xie Bian and Gundam in Joy of Life.

According to the information provided, Gundam couldn't defeat Xie Bian. In Joy of Life, Xie Bian was described as the fastest sword in the capital. He could easily defeat a Rank-8 expert, Gao Da, and his fast sword could not withstand the attack of a Rank-9. Although Gao Da was Fan Xian's personal guard, his strength should be at the peak of the eighth level. Xie Bian was considered an even stronger character. Therefore, according to the information provided, Gundam couldn't defeat Xie Bian.
According to the information provided, Xie Bi 'an was described in " Celebrating Years " as the fastest sword in the capital. He was very powerful and was thought to have reached the eighth rank or above. In comparison, although Gao Da was also an expert, he did not have Xie Bian's abilities. Therefore, from the information provided, Xie Bian was more powerful than Gao Da.
In Joy of Life, Xie Bian was described as a master by the Second Prince's side. He had powerful swordsmanship and the ability to kill people invisibly. His strength had reached the Eighth Stage and was almost close to the threshold of the Ninth Stage. In comparison, although Gao Da was also an expert, he did not have Xie Bian's abilities. Therefore, in terms of strength, Xie Bian was more powerful.
[Gundam couldn't beat Xie Bian in Joy of Life] Xie Bian could easily defeat a Level Eight expert, Gao Da, and his fast sword could not withstand the attack of a Level Nine expert. Although Gao Da was Fan Xian's personal guard, his strength should be at the peak of the eighth level. Xie Bian was considered an even stronger character. Hence, Gao Da was unable to defeat Xie Bi 'an.
According to the information provided, Xie Bi 'an was described as an expert by the Second Prince's side in " Celebrating Years ". He had powerful sword skills and the ability to kill people without form. His strength had reached the Eighth Stage and was almost close to the threshold of the Ninth Stage. In comparison, although Gao Da was also an expert, he did not have Xie Bian's abilities. Therefore, according to the information provided, Xie Bian was stronger than Gao Da.
According to the information provided, Gundam couldn't defeat Xie Bian. In Joy of Life, Xie Bian was regarded as the fastest swordsman in the capital. He could easily defeat a Rank-8 expert, Gundam, and his fast sword could not withstand the attack of a Rank-9. Although Gao Da was Fan Xian's personal guard, his strength should be at the peak of the eighth level. Xie Bian was considered an even stronger character. Therefore, according to the information provided, Gundam couldn't defeat Xie Bian.
According to the information provided, the Gundam couldn't defeat Xie Bian. In Joy of Life, Xie Bian was described as the fastest sword in the capital. He could easily defeat a Rank-8 expert, Gao Da, and his fast sword could not withstand the attack of a Rank-9. Although Gao Da was Fan Xian's personal guard, his strength should be at the peak of the eighth level. Xie Bian was considered an even stronger character. Therefore, according to the information provided, Gundam couldn't defeat Xie Bian.
According to the information provided, Xie Bian was described in Joy of Life as an expert who worked for the Second Prince. He had powerful sword skills and the ability to kill people invisibly. His strength had reached the Eighth Stage and was almost close to the threshold of the Ninth Stage. In comparison, although Gao Da was also an expert, he did not have Xie Bian's abilities. Therefore, from the information provided, Xie Bian was more powerful than Gao Da.
Xie Bian's ending was a tragic death. As the Second Prince's guard and swordsman, Xie Bian was sent to assassinate Fan Xian, but Fan Xian was ultimately killed by Yan Bingyun. However, after the Second Prince's rebellion failed, he chose to commit suicide. Xie Bi 'an was also implicated because of this and was eventually beheaded by the Qing Emperor. This ending was very miserable.
Xie Bian's ending was a tragic death. As the Second Prince's guard and swordsman, Xie Bian was sent to assassinate Fan Xian, but Fan Xian was ultimately killed by Yan Bingyun. However, after the Second Prince's rebellion failed, he chose to commit suicide. Xie Bi 'an was also implicated because of this and was eventually beheaded by the Qing Emperor. This ending was very miserable.