BLUE DROP ~まいおりた 天使~

简介

This story takes place during the human war of resistance against the Arume. Sachi lost her parents due to the sudden attack of an alien race 7 years ago called the Arume. While living in an orphanage of children who suffered the same fate, a girl with no memory, Ai, suddenly appeared. Who is this girl and what is she so afraid of?

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