Shelly is a friendly Shellfish Girl. She can join you after a battle
Shelly: "Heeelp meee!"
Yume: "Oh, Shelly. ♪ Come on, let me have drink!"
Shelly: "Kyaaa! Help meee!"
Yume: "Ahahaha. Wait up. ♪ "
Sonya: "(They seem to be having fun.)"
Wakame: "Stick both of us in a pot together, and we'd make a good seasoning..."
Shelly: "Are you really okay with being turned into miso soup?"
Kitsu: "Oh, can we add tofu?"
Wakame: "On second thought, let's have kitsune soup..."
Eva: "Hey, are you hiding a pearl in your shell?"
Shelly: "No. I'm not a pearl oyster."
Eva: "Shame... Let's say, for the sake of argument, I needed ingredients for a miso soup..."
Shelly: "Is this really just 'for the sake of argument'?"
She is required in the "Sea Company" scene.