I watched this anime a few years ago as of 2020. It’s about a few girls (I think 3) that get given a power by a little creature (actually an exiled prince from another world). The power is they can transform into different versions of themselves to help others.
The main girl (I think has pink hair) has a crush on a guy (the exiled prince's brother) that turns out to basically be evil.
The exiled prince needs the girls to collect love or something to help save his land from darkness / the queen of the land. And some point the exiled prince starts to fall in love with the main girl.
It’s sort of like a magical girl anime I suppose? The girls can transform into things like flight attendants, teachers and things like that. Though they do keep features like their hair and eye colour. The brother of the exiled prince has a girl with him as well that I think was in love with the exiled prince?
I'm pretty sure I watched this series on YouTube as well.