Resized to 66% of original (view original)
Artist's commentary
Sketches
The first image is a SEKAI-chan who can't understand the feelings of her Master, who bought her as they had little time left to live; the second image is a KAFU-chan who, even though it's the first time you've met her, is for some reason calling you "Master"; the third image is of KAFU-chan and SEKAI-chan as BFFs.