Artist's commentary
Nyan-Nyan Nyan Day
It's this year's day to draw Catgirl Omake, so I drew kitty-cat Seiga. Meow.
Nyan-Nyan is Seiga's fandom nickname because she is Chinese, and the Chinese pronunciation of her Kanji is Niang-Niang.
Omake is bonus content included when artists have good one-off ideas that they feel like screwing around with.