Christmas in Carmine is a one-and-a-half page special Bleach omake chapter concerning the celebration of Christmas. This Omake was also included in the Bleach: Official Character Book SOULs and contained an extra sketch panel showing Ichigo dressed in a santa suit with a Quincy cross on the back. As such, it is clearly the handiwork of Ishida.
Rukia has been told that everybody has to wear Santa Claus suits during Christmas and asked Ichigo to do so. Ichigo refused, but when he goes out he finds that everybody else, including Orihime, Tatsuki, Sado and Uryū, are wearing one. This leads to Ichigo being embarrassed about not wearing a Santa suit. The story ends with Uryū telling Ichigo that he will not make Ichigo a Santa suit even if Ichigo kneels down and begs.
Characters in order of appearance: