Neko no Hi

About this title

One day, Luna, her pet cat, suddenly took on human form. However, she sometimes turns back into a cat, but only mentally. When she's like that, she causes all kind of trouble, but she is so adorable that everything is soon forgiven. Is she going to act like a cat or a human today? A happy-go-lucky romantic comedy by a talented yuri artist! (Source: Kadokawa, translated)