While this yokai looks cute, I wouldn't pet it.
Day two is the Keukegen, a filthy monster covered in fur. They can be found in small, dark, and damp places in your home, and once you have an infestation, they spread disease and bad luck. The only way to get rid of it is to keep a clean home, since it loves filth and hates cleanliness.
In this image, I imagined a child who found a keukegen under his bed and kept it. He eventually became so obsessed with it that he purposefully spread mold in his home. The keukegen spread a disease to his parents, and they only figured out what was happening right when their strength left them.
click here for more information. http://yokai.com/keukegen/
And here is the first image: https://www.weasyl.com/submission/1055698/day-one