Shiro, a black cat, has a great affection for her family. Her love for them is so profound that she aspires to aid and support them during tough times. The only problem she faces is her feline form which limits her ability to assist. One night, she gazes at the moon and wishes to transform into a human girl who can help her family better. To her surprise, her wish is granted, and she wakes up as a human the following day.