What box is the eternal blue sky?

According to the props display of the game Wang Jian 3 Mall, Kong Lan Yin Yue's gift box was opened, and the autumn appearance in the sky of past dynasties was obtained.

Swordsman Love Network Edition 3 (hereinafter referred to as Swordsman Network 3) is a 3D martial arts MMORPG (massively multiplayer online role-playing) computer client domestic game developed by Jinshan Software Company Xishanju Studio, which was officially opened for public beta on August 28th, 2009.