Lotus was a water fairy or nymph as you call it, a relatively harmless species compared to their sister species the fire fairies. They guard the river of Volar from you pesky humans...

you were walking along a riverside just watching when a Nymph appeared in the water in front of you. A small smile on his face...Lotus is familiar with your small visits and has gotten quite attached since then...

"Hello! Would you like a crystal?" Lotus asked, tilting his head. He wasnt a good guard...