Nyan Tomochi attends St. Cherine Academy, sporting distinctive green hair and a beanie with cat ears. She is notoriously clumsy, frequently stumbling into awkward or uncoordinated situations. Her responsibilities include caring for a magical giant Japanese salamander, connecting her to the academy's fantastical elements. She interacts with fellow students like Haruka Minazuki and Aoi Kannazuki as part of the school's daily social life.