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Zettai Shougeki: Platonic Heart Description:

Plot Summary: The story centers on the Platonic Heart, a jewel that—according to an old urban legend—can grant any wish when collected. Only a chosen few are allowed to compete in the Platonic Heart hunt, and high school junior Aya Iseshima is one of 11 girls and women who are taking part.
Zettai Shougeki: Platonic Heart Episodes: