Fuutarou Uesugi is a poor, antisocial ace student who one day meets the rich transfer student Itsuki Nakano. They argue but when Uesugi realizes he...

When the "Sirens," an alien force with an arsenal far surpassing the limits of current technology, suddenly appeared, a divided humanity stood in...

Umika is a sweet yet shy high school girl. She has trouble speaking to others and dreams of having a friend from another planet. But her lonely...