Yu Yu Hakusho

Kuwabara: Awakening (3x10)

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The dormant powers of Kuwabara have awaken, as he continues his fight against Seaman. Seaman realizes that Kuwabara is the one that can shatter barriers between different dimensions. Using his new spirit sword, Kuwabara frees his friends and defeats Seaman. Kuwabara brings his friends, along with Seaman, back to his home. Seaman talks about a video called Chapter Black, showing footage of victims of humankind's atrocities against their fellow men. Viewing of this footage can change a human against its own kind. Shinobu "Black Angel" Sensui, is revealed to be a former spirit detective, unveiled as the mastermind behind the plot to remove the barrier to the Demon World.