This is a story about stars as people, about the love affair between Mercury and Pluto. Mercury is a girl who is good at dancing. After meeting Pluto, she fell in love with him at first sight. Their relationship went from being sweet at the beginning to becoming distant later on. Their feelings are constantly changing with the crises lurking in the universe, but they still firmly believe that their feelings for each other are indestructible. At the same time, it is not just the two of them that are facing changes, but also other stars and even the entire universe. Mercury, who used to sing and dance all day long, had to become stronger, both in life and in relationships. Inevitable war and death surround their lives. Can the two stars really be together forever like in their fantasy?