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Koneko's sister Kuroka has appeared to take her sister away from Rias Gremory. Issei and Rias chase after her to stop that from happening. At the same time, a figure who objects to these alliances between mythologies appears at the great gathering.
First Air Date : Jan 06, 2012
Last Air date : Jul 03, 2018
Episode : 49 Episode
Season : 4 Season
Runtime: 26:14 minutes
Studio: AT-X
Country: Japan
