Once Gu Xijiu was moved to a new body, Long Siye could even change her memory so that she could fall in love with him again and they could live a happy life together.
If Long Siye were to succeed without anyone knowing, he must kill the little Yannuo who always followed Gu Xijiu everywhere. Hence, he hired the four assassins.
After all, the little Yannuo was only a kid in his eyes and his Kung Fu was not powerful. Besides that, he was quite annoying to Long Siye. Hence, Long Siye had no hesitation to kill him.
Furthermore, Long Siye could claim that Gu Xijiu was attacked by the Silver Fairy Beast while she was trying to retrieve its muscle fibers. It was a good alibi that would allow the real Gu Xijiu to stay by his side for the rest of his life. Come to think of it; the plan sounded really amazing!
