Recently, NetEase officially released the preview video of their Onmyoji mobile game's anime adaptation in China at the bilibili streaming website - basically the Chinese version of Niconico.
The original source can be found here. Here's the preview trailer.
First episode is expected to be aired on April 21, 2018 at the bilibili website.
Also, they released the anime opening for Onmyoji MOBA version. Here's the opening video.