Shaybug

Shaybug was wandering through Paris at night searching for Ladybug and Cat Noir and their Miraculous. She started spinning her yo-yo at high speed, thinking of some destruction she could cause to get their attention, but stopped as soon as she heard a creaking sound coming from behind. In the same second, she struck with her yo-yo, destroying part of the wall behind her but missing whoever made the noise. She looked at the mysterious figure, now invisible because of the dust raised by the blow itself.

Whoever you are, you better be useful or run for your life. I'm in a good mood today, so don't push your luck.