For all those who think miuna and hikari should be together(or for manaka haters) listen, manaka is actually partnered with hikari in first place. In the last episode, hikari still chose manaka over miuna, because remember hikari said that his feelings won't change for manaka. And one more thing, manaka isn't a bitch, it was just because manaka and hikari are ment to be. (Just saying this to manaka hater, and I don't wanna fight....)
I know this comment is two years old, but I want to explain why I still think that Miuna is better for Hikari. Firstly, the reason why most people seems to hate on Miuna x Hikari it's because of the incest thing. But, they are not related by blood and they don't even sees each other like family, I mean, they sees each other like friends ! it's not incest. Secondly, Miuna always been there for Hikari, while all Manaka did during the whole show was hurting Hikari. Even after getting her capacity to love back, she didn't even notice Hikari at the end and hugged Miuna. Miuna is better than Manaka.