Rin Rin & Ran Ran from Ranma ½ (the first series)
Notable tags: red hair, black eyes, double bun, sidelocks, chinese clothes, heart print, shoulder pad, blue shirt, pink pants
Notable tags: aqua hair, blue eyes, single hair bun, long sidelocks, chinese clothes, heart print, shoulder pad, blue shirt, pink pants
In all honestity I forgot which is which