This comic follows the story of other robotic cats that form a baseball club. Though it shows Doraemon in the beginning, it doesn't focus on Doraemon itself (because Doraemon must go back to the past to help Nobita). The group is led by Kuroemon, a cat that looks like Doraemon, only it has ears and black fur. It features a lot of imaginary ability, and in the baseball game, is allowed to use up to 3 gadgets.

(Source: Wikipedia)