I honestly love this kind of artworks with positive messages. Especially when it's a natural message, and not some artificial, mediocre and/or fake corporate attempt to sell me something. Considering how much some people self-sabotage themselves daily, some authentic positivism is always welcome.
I'm surprised Sensei hasn't collapsed into a black hole, he's so dense....
The way jazz's Blue Archive posts are going (and assuming they're all in the same continuity), it's going to end with someone resting in pieces, and I'm still not sure who. (Likely not Sensei, unless someone figures out how to get pieces from something that dense....)