Rachnee is a friendly Spider Girl. She can join you after a battle.
Rachnee: "I can't place my web here? Stingy!"
Rachnee: "Oh? The same type? How unusual. We are a solitary group so we don't encounter each other very often."
Rachura: "Spider monsters are loftily included in the insect race. I may be a monster but I still love peace."
Rachnee: "Your body makes that hard to believe."
Rachura: "I wonder if I could fix that with some cute decorations?"
Rachnee: "Woah, it's a scorpion... You won't sting me right?"
Scarlet: "I don't attack people indiscriminately. Aren't you the one with the terrible personality?"
Rachnee: "I only attack prey that get caught in my web. It's the perfect defense for monsters."
Scarlet: "(I gotta be careful I'm not eaten by this person.)"
Rachnee: "Oh? The same type? How unusual. Somehow I get the feeling you are different from the rest of us."
Ashidaka: "That's because I am a specter. I am from Yamatai!"
Rachnee: "Was that rude of me? Please forgive me."
Ashidaka: "No, this is just how I normally talk."
She is required in the "Bugs" scene.