High School DxD HERO

Synopsis

The fourth season of High School DxD.Issei and the 2nd years attend a class trip to Kyoto for well-deserved relaxation, leaving the senior and junior class students of the Gremory family behind. However, once there, they fall under attack and must win without Rias or their other powerhouses.(Source: Anime News Network) Includes episode 0, Taiikukan-ura no Holy.

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