Once upon a time, there was a catastrophic songstress named Nova Ashina who merged with dark sonic entities, hell-bent on bringing the mystical realm of Onkoto to complete annihilation. Ashina, as that legendary destroyer, did indeed lay waste to Onkoto... but in the world where Guest exists, everything looks completely different. The evil songstress transformed into a guy?! And now he goes by Nova?! And if you dare to peek into Nova's daily routine, it's just one mind-blowing revelation after another!

...This is the story of Guest, who stumbles upon the absolutely wild daily life of Nova, the male incarnation of that once-legendary songstress.