Final Fantasy? That's some bad tagging right there.

I think the idea is to have a tag for this sort of character grouping -look, which is often seen in FF ads, like this for example: http://www.zomgwtf.net/RandomPicturesNstuff/misc/FinalFantasyAdvert.jpeg.
post #9965 would be another example of this - I'm sure there's more too, but it's a pain finding them without any surefire way to look them up.

I still haven't found anyone who can explain the left side.

I think it is more Riviera The Promised Land

futari wa pretty cure season 1 heroes and villians