Stop me if you've heard this one before - two main characters have a meet-cute and fall in love somewhat unexpectedly. Their relationship hits a few rough patches here and there, but they move past it all and wind up together in the end. This is how romance stories typically go in just about every medium they are told in. Well, anime seems to understand this formula, employing it, while also incorporating interesting wrinkles that, more often than not, leave viewers wanting more.