Description: You are a dog's kidney. Your dog is in kidney failure and doesn't have much time left to live. By assisting with kidney function, you can extend your dog's life a little longer and postpone the end of your dog's and old man's lives. You recognize the blood as four colored blocks. The blocks can be broken with a few taps and have the effect of "getting rid of toxins" and "gaining kidney experience". Blocks are combined with other blocks of the same color, so the more blocks you put together, the more efficient you are.