To celebrate the anime's official X account surpassing 1 million followers, they announced a giveaway of 100 smartphone wallpapers!
There were various wallpapers featuring chibi characters, scene cuts, and newly drawn visuals for events!
On smartphones, be careful, as the wallpaper download starts the moment you tap or touch the image.
I accidentally downloaded this one.
I remember being annoyed when I saw Sayahime cosplaying in real time back then, because it actually suited her a little bit lol

Get 100 free smartphone wallpapers! | 袮夜†大切で大好きな愛する最愛の嫁のルビーとpair's post