Those two characters were Taka and Chii, there's more art of them here!
neko-niki.deviantart.com/art/C…They're a bully / bullied dynamic where the bully falls for the bullied, albeit slowly during their time (rough) together, it was sort of like a power-flip where originally Taka had it all but slowly lost it to reverse where she needed Chii. They were OC's my partner and I came up with and ran stories with together, so there's no more aside from those two artworks!