Summary: After the decline of the once robust fields of science and technology, a new energy source known as magic fuels the modern era. Humanity creates forbidden biological weapons: Gears. Those Gears eventually stand against humanity in a rebellion. Although they manage to overcome in the struggle for survival known as the Crusades, humanity's losses are so great that even after several decades pass,...

Summary: This is the world of the battle analysis system "Compass 2.0". It is a dreamlike space where heroes gathered from many different worlds spend time together with their human partners, the players. The energy generated by the heroes' battles is essential to the operation of #Compass, and battling is their responsibility. However, a troubled hero named 13 refuses to find a partner or battle, and is...

Summary: Gloria Private Academy is a school where promising young people gather in all fields of entertainment, including music, art, and sports. In the music department, those who match the "talent" of great musicians are transplanted with a "gift" into their bodies and are called by the name of that musician. Beethoven, a young man who was discovered to be compatible after an injury, is one of them....