The holy cup is a golden chalice used in certain occult rituals found in the Bible Black spell book. The cup is intended to be filled up with semen and/or blood, forming a magic concoction for a multitude of purposes.
The prop is used in the first Bible Black game, the first anime series Bible Black: La Noche de Walpurgis and its sequel Bible Black: New Testament. It also makes an appearance in a scene from Bible Black: Only.
A perverted folly
The occult obsessed student Kaori Saeki uses the chalice to collect semen from several male virgins at school with her witchcraft club friends Jun and Maki. She has sex with a boy in an empty classroom, while Jun does the same to a boy spying on her in the swim team locker room. After Maki has her way with a fellow tennis player, all three girls have sex with a biology teacher as well.
Later at Saeki's house, Saeki adds her own blood to the semen-filled cup and drinks from the mixture, causing two erect phalli to shoot out from her groin as she drops the chalice on the floor. In a possessed sexual frenzy she has intercourse with both her friends simultaneously.
School nurse and witch Reika Kitami also uses the cup to collect the semen from her male followers in order to purify the altar in the Academy basement in preparation of a soul exchanging ritual with Kurumi Imari on Walpurgis Night. The men have sex with several girls and then ejaculate into the cup. Kitami then slashes her own wrist and adds her blood to the mixture.
Spear of Longinus
Years later, Saeki again uses the golden goblet as a teacher when catching the semen of the school's vice president Takeshi Oshima. Kitami - in the body of Imari - dips the tip of the Spear of Longinus in the cup, making the metal artifact glow red. She then insert the object inside Aki Ichikawa's vagina, causing the girl to scream in agony.
Yamanishi is forced to drink from the mixture to corrupt his mind and bring him under Kitami's command. It causes his penis to grow to monstrous size. Saeki, who also ingests the concoction, is forced to have rough sex with him.
- A similar cup can be seen at the beginning of the first game when Kaori Saeki performs a pretend ritual before class starts. (screenshot)
- The cup is most likely inspired by the Holy GrailWP or Holy ChaliceWP, two relics commonly associated with ChristianityWP.