Danbooru-based image board with a specialization in high-quality images.
ass game_cg hanyuu_ayuka jpeg_artifacts kunai_uri nakadashi_oyako naked_apron

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Why many loves deteriorating image quality meaninglessly :/
Game CG + jpeg_artifacts is completely no sense
There is a tenancy to extract to JPEG rather than PNG.
Unfortunately they didn't put the compression factor low enough, a low factor run could cope with this image easy.