Tsui no Sora / End of the Void

Tsui no Sora / End of the Void - hentai anime based on the video game "Sky at the Edge" by studio KeroQ. After the death of Takashima Zakuro, girls begin to disappear without a trace in Yukito and Kotomi's class. Is someone kidnapping them for some terrible purpose? Suddenly, Ayana gives Yukito a hint as to who might be behind it all...