Even if they did successfully make a new clone, it might not be as perfect as this body. Therefore, both Long Fan and Mo Zhao did not want to destroy it.
Since Mo Zhao had to use this shell for decades, Long Fan had to figure out a way to fix this problem. However, it was not something that could be done overnight. Even though he had been busy the entire day, he was unable to yield any results. He decided to go and visit Gu Xijiu. However, he had not expected Mo Zhao to be there too.
Ever since Mo Zhao regained his human form, he liked to eat a lot because it made him feel alive. To develop his relationship with Gu Xijiu, he dined with her during every meal. Coincidentally, Long Fan was hungry too, so he stayed and had a meal with them.
Mo Zhao and Long Fan knew that Gu Xijiu was not very intelligent at this moment, so they did not bother hiding any secrets when they talked. They discussed the natural impotence problem as well as the mystical martial arts.