So I'm a Spider So What Vol 1

I'm gonna survive, just watch me!
I was your average, everyday high-school girl, but now I've been reborn in a magical world ... as a spider?! Wait - this isn't how these stories are supposed to go! Can I get a do-over? ... No? But how am I supposed to survive in this big, scary dungeon as one of the weakest monsters? It's "every spider for herself" in here! I gotta figure out the rules to this QUICK, or I'll have to kiss my short second life goodbye ...