Residual Corrosion Block

A strange summer without cicadas singing... It suddenly occurred.

Yuichi and Airi are high school students worried about their future careers. Yuichi lost both of her parents in an accident, while Airi has a strained relationship with hers. They are close friends. However, that summer, a strange phenomenon occurs in their town, with sex workers disappearing one after another. Rumors soon spread that the cause is an infectious disease in which eye-like rashes pop up from the bodies of the women, eating away at them with "something." Airi, who harbors a secret she cannot tell anyone, is frightened by the unknown rumors, but this is only the beginning of a further threat. A sisterhood x panic horror story about girls living under extreme conditions.

(Source: Kadokawa, translated)