Now that there's a translation available for (most of) what she says:

-= Radiant Cycla Menn =-

Doing a gathering: "I am brave. I achieved it!"

Finding a hidden stage: "Wh-What happ... Huh, no, nothing. I, we will win! Knight Commander! Give me an order...!"

I still can't pull up her introduction and I'm guessing that's also the case for Radiant Anemone, Radiant Cattleya and Water Hyssop.