An original video anime bundled with a limited-number edition of Corpse Party -The Anthology- Sachiko no Renai Yuugi Hysteric Birthday 2U (コープスパーティー -THE ANTHOLOGY- サチコの恋愛遊戯Hysteric Birthday 2U) spinoff game.
Source: ANN
Shishido Yui
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One rainy night after a school festival, a group of students from Kisaragi Academy decide to perform the Sachiko Ever After charm, which will unite them forever as friends. Once the ritual is done, a sudden earthquake transports them to Heavenly Host, a torn down elementary school. Unbeknownst to Satoshi and his friends, however, is the horrific past behind it which culminated…