The White Cat's Revenge as Plotted from the Dragon King's Lap manga volume 1 features story by Aki and Kureha and art by Yamigo.

My life was pretty ordinary. Go to college, live in an apartment, hang out with people. But because of that pompous, irritating girl I grew up with, I got dragged into a huge mess. As usual. Now I'm in another world where she's a well-respected shrine maiden…and I got turned into a cat. How did it come to this?!