The One, The Enlightened

Michiaki Ito and Raiden Ito are two unseperatable siblings. They and their childhood friends Hikari, Akihito, and Miyuki can accomplish anything together and back each other up. However, something would put their friendship to the test. It all started when their school mysteriously gets closed due to a publicly-announced fire breakout. The group instantly realizes that this is not true and while they try to figure out what is wrong, Ito's parents are called to the school and never come back. At that moment, the group decides to secretly enter the school to investigate. Will their findings bring anything to the table? Searching through the school, the group stumbles across a scrumbled note and a mysterious crystal. The school is empty and they could not find anyone else. Returning from school, they meet Kyouko, a girl who experts in those kinds of strange disappearances. With the help of Kyouko, they learn that the crystal is a part of the 9 Rivals, which are 9 magically powered crystals each one having a unique effect. Kyouko decides to help the group resolve the mystery of the school's incident and rescue Ito's parents.