Cute ship, too bad there's barely any fanart or doujins od it.

Can somebody

https://www.youtube.com/watch?v=jPoO6xokzXU
This video is like the best Dia x Mari video I ever found. Unlike the other Pas' Dia x Mari materials that tend to be comedic in nature, this video is more sad/bittersweet. I don't know what Dia's expression in the end means, maybe hopefull? Please don't tell me that she given up too. Pas really need to make the continuation of this video (happy end one I hope).