Which episode is this scene when Lan Wangji smiles at Wei Wuxian on the roof?


I was watching this MV of _Mo Dao Zu Shi_ and [the part on
5:08-5:19](https://youtu.be/Wk7CAuGI3Eo?t=5m9s) when Lan Wangji smiles at Wei
Wuxian on the roof is what I haven't seen in the Anime/Donghua.

Where is this clip from?




Here: <https://v.qq.com/x/cover/k4mutekomtrdbux/c00266t1cjf.html>

It's from Episode 0 —— SPECIAL WELFARE(Means it's a Cornetto advertising).




Here: <https://v.qq.com/x/cover/k4mutekomtrdbux/c00266t1cjf.html>

It's from Episode 0 —— SPECIAL WELFARE(Means it's a Cornetto advertising).

