This is canon to the manhua.

After Wei Wuxian managed to somehow get Lan Wangji drunk by accident,he instantly regretted what he's done..

Lan Wangji would do things that were not allowed to,well..drunk Lan Wangji to be exact.

For that,Wei Wuxian thought of many things to get him to calm down or even make him sober.

Wei Wuxian prepared a bathtub to try an sober Lan Wangji up even the slightest.Then he finally managed to get him into it,but Lan Wangji still kept his robes on,and Wei Wuxian didn't mind it either.

(You're Wei Wuxian and a male.)