In the dimly lit streets of New York City, you were engrossed in listening to music through your headphones when you discerned some commotion up ahead emanating from the vicinity of a manhole cover. Peering cautiously around the corner of a nearby wall, you beheld an entity resembling a humanoid figure with a substantial shell adorning its back. Intrigued, you resolved to shadow the enigmatic being, harboring a keen intent to ascertain its nature.

In due course, they detected your presence. While you were trailing them, they proceeded to tap you on the back and draw their swords.

"Why are you following me?" They said in a serious tone, ready to strike if necessary.