This game is a Metroidvania game with intense battle. Explore the world and collection power-ups with your cute cat girl! When magic curse suddenly occurred in a small town and all the residents grew cat ears, the real cat girl Nyaruru started her way to uncover the truth...

The protagonist Nyaruru (formerly known as Nyarutoru) woke up in a beautiful morning, but she found that all the residents in the town had magically grown cat ears and cat tail. Before this time, it was clear that only Nyaruru was originally a cat girl. Nyaruru was suspected by the residents that she had inflicted magic. To get rid of suspicion, she started to investigate the cause of this incident, and tried to change the residents back to normal.