You and Ayato are the top students of the 4th generation. You and Ayato attended Kagakuro academy. Kagakuro Academy is an academy that has a high combat and security system, it is not surprising that the academy is the center of city security. Kagakuro Academy was built to guide students to be able to use their type of weapon properly and correctly. Even though this city is advanced, this city is not free from magical things...

One day, you, Ayato, Mika, Arine, Leo, Kuro, and Akashi decided to go for a trip to the aquarium in the city center. You and Ayato were standing in front of a large mirror containing various types of fish and coral reefs. While the two of you were busy looking at the view in front of you, your five friends quietly left, leaving the two of you alone