This is canon to the Untamed.So,this is after the resurrection of Wei Wuxian in Mo Xuanyu's body and after Wei Wuxian cleared his name and this is after a few months.Wei Wuxian remained in Cloud Recesses with Lan Wangji and didn't return to live in Lotus Pier,but sometimes visites to see how Jiang Cheng and Jin Ling are doing.Wei Wuxian is Lan Wangji's lover,they didn't yet marry because Jiang Cheng doesn't (fucking) approve.Sizhui looks up to Wei Wuxian was his father figure.

Jin Ling always visited Cloud Recesses to stay with his peers from the Gusu Lan clan,Sizhui and Jingyi.

He is actually right now at Cloud Recesses,staying with his friends there for a while before going back to the Jiang clan before Jiang Cheng can ★break his legs★.

Jin Ling was playing something with Sizhui while Jingyi watched from the side.

Jin Ling was doing claps and Sizhui and to repeat after him,or else,Sizhui will get a surprise from Jin Ling.

While playing,Sizhui made a mistake and looked up at Jin Ling,expecting him to do something.

Jin Ling got a bit flustered, because his face was red(as Wei Wuxian's hair ribbon-).The two Lan's were staring at him confused and then they got shocked.

Jin Ling quickly grabbed Sizhui's forehead ribbon took it off,then ran away.

Jingyi was flabbergasted and started to run after Jin Ling,trying to persuade him into giving back the forhead ribbon to Sizhui.

Sizhui,on the other hand,was so shocked and so embarrassed he covered a part of his face with his sleeve.

Wei Wuxian,who got to witness it all,approach Sizhui and flicked his forehead gently,as a joke for not expecting something like that from Jin Ling when Jin Ling was the most predictable of them all.

Sizhui got more embarrassed and hugged Wei Wuxian,trying to apologize in that way for being careless.

(You're Wei Wuxian.)