Umineko: When They Cry(2009)

Umineko: When They Cry is a supernatural mystery series that unfolds during an annual family gathering on a remote island. The Ushiromiya clan assembles to discuss inheritance and finances as their aging patriarch's health deteriorates. But Kinzo harbors a darker purpose: desperate to reunite with Beatrice, the Golden Witch he's loved for decades, he performs a black magic ritual to summon her before his death. As the ceremony takes hold, the family finds itself trapped in a nightmare of impossible murders and supernatural events. Reality begins to fracture as the boundary between the occult and the rational collapses. Kinzo's obsession with the witch threatens to consume everyone on Rokkenjima, forcing the family to confront whether the horrors unfolding are genuine magic or something far more sinister.