Child's Play Side Story Full Walkthrough and Details | Where Winds Meet

A pair of siblings want you to play along with them.

[1] Talk to Cheng Yingying.

[2] Use the Kneel Emote on her brother to play along with their game.

・Oscillating Jade x 2
・Echo Jade x 8
・Kaifeng Exploration x 5
・Character EXP x 1000
・Coin x 1000