At this moment, Lan Mengqin was tasked not only with extinguishing the Double-headed Monkey King's fighting spirit but also with sealing its spiritual attacks.
The group mental attack it previously launched was incredibly potent, having rendered multiple people unconscious. Moreover, everyone was injured to some degree. If it were allowed to strike again, it's likely that no one present would be able to withstand it. Therefore, Peaceful Music was indispensable at this point.
The spiritual attack previously launched by the Double-headed Monkey King was probably absorbed by the Power of Lan Yang and Ziyang; sealing its psychic offensive capability at this time meant significantly reducing its direct killing methods.
