Brother, do you hate me?

Being born as a twin means that one of the twins become the sun, and the other one become the moon. That is what most people think. While it may be true to some, it doesn't mean that all twins have to be like that.

The two pair of twins, Nanase and Aoi, are two relatable twins. People often think that the older twin is a lot better than the younger one, and the younger one are only there to serve as their shadow. Not that they agree to that. In fact, they are completely against it. They think that their younger brother are as bright as them.

But alas, every happiness comes with a trial.
No happiness can be obtained that easily.

Or can they?