* Based on a tower defense mobile game developed by Chinese developer Hypergryph.

Oripathy - It is an incurable disease that gradually crystallizes people's bodies, and death. The pharmaceutical company Rhodes Island is researching a cure and trying to solve all the problems caused by the disease. Rhodes has been working under contract with Lungmen, a city of Yan, to stop the riot of Reunion Movement, a terrorist organization that claims to be a cure for the infected. After the battle with Skullshatterer, Amiya could not accept the fact that she could not save Misha, and has been left to grieve alone. Meanwhile, Rhodes discovered an abandoned city on the outskirts of Lungmen and sent a scouting party there. There, they notice a strange phenomenon...

Source: Crunchyroll

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Prequel: Arknights: Prelude to Dawn
Sequel: Arknights: Rise from Ember