This is the story of two siblings whose hearts end up linked.

Based on the 40mP million-view hit Vocaloid song , Miyashita Megumi, also known as "Gumi", was one of the only survivors in a plane crash... more>> thirteen years ago. Since then, she has been able to see two copies of every person and one of them always has a "C" on them. Thirteen years later, she now wears glasses, yet her left eye remains a puzzle. And then, her friend goes "missing". <<less

Based on the original song by OSTER project, One late night, Miku gets a text from a classmate of hers, saying he’s down with a... more>> 38.5*C fever and asks for her help. What should Miku do? Obviously, 38.5 is not much of a fever so why should she even bother worrying? It’d be better to simply ignore it, right? Nevertheless, for some reason, she just has to go see him. Could this be…love?! <<less