Kumo desu ga, Nani ka? is a Manga in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on kumodesugananika.org fastest updating comic site. The Summary is

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 be kissing my short second life good-bye…