Episode list

The students at Ariadust Academy must use speed, skill, and teamwork to outsmart their teacher during a wild chase around the city. Later, Tori Aoi, the supposedly talentless head of the student council, announces his plan to ask out his friend, Horizon, who died 10 years ago.

The students receive a history lesson, a new classmate makes a mysterious entrance, and Tori continues his quest to confess his love to the long-dead Horizon.

The students prepare for an exorcism, Kimi worries about her brother, and the story of Horizon's death becomes clearer.

A fierce fighter may become a new student. Meanwhile, a surprise death sparks a global battle.

The city faces a disaster of epic proportions and an android's true significance is revealed.

Horizon is blamed for the city's destruction and is set to be executed. When the students discover that the android is actually their former classmate, they must decide if and how to rescue her.

The students can't agree on whether to rescue Horizon. To settle the debate, the two factions agree to a series of battles. Will they risk starting a war to save their friend?

The argument over Horizon's fate takes an unexpected turn. Meanwhile, Pope President Innocentius enters the fray.

Kimi's special talents settle the debate over Horizon once and for all.

The war has begun! Attacks rage on land and in the sky. Will the students' array of weapons be enough for the fight?

The Testament Union is gaining ground, but Tori has a plan. Meanwhile, Futayo faces off against an enemy in the forest.

Tori locates Horizon and confesses his love. The only way to save both of their lives is to convince Horizon she is human. Is their bond strong enough to survive?

Innocentius renews his attacks on the Ariadust students. Horizon reaches a critical turning point, and new dangers approach.