PV 2017 Rebroadcast ver.

PG-13
HD
TV 25m
Three monsters, Bem, who looks like a gangster, Bero, who looks like a boy, and Bera, a witch, act as agents of justice, hoping that they will be allowed to become human. Several episodes involve them protecting a young boy. The style of animation is fairly distinctive, and the storylines not without interest. (Source: AniDB)
Overview:
As a child, Uta—the Red Hair Pirates' ex-musician and Monkey D. Luffy's childhood friend—promised that she would build a new era of freedom by performing joyful music for the world. Luffy and the Straw Hat Crew arrive at Uta's first ever live concert, where many fans have gathered to enjoy the diva's otherworldly singing. Due to a childhood trauma, Uta bears a deep-seated hatred for pirates; her happy reunion with Luffy is cut short when she learns that he has since become one. Luffy's refusal to change his ways results in Uta unleashing her powers on the Straw Hats. The crew soon learns that their minds have already been trapped in Uta's dream world since the beginning of the concert, while their unconscious bodies remain asleep in the real world. With time quickly running out, the Straw Hats must find a way to escape the nightmare or be trapped in Uta's dream forever.
Japanese: 妖怪人間ベム
Synonyms: Yokai Ningen Bem, Demon-man Bem
Aired: Oct 7, 1968 to Mar 31, 1969
Premiered: Fall 1968
Duration: 25m
Status: Finished Airing
MAL Score: 6.02
Genres: DemonsHorror
Studios: Dai-Ichi Douga
Producers: Dai-Ichi Douga
AniWatch is the best site to watch One Piece Film: Red SUB online, or you can even watch One Piece Film: Red DUB in HD quality. You can also find Toei Animation anime on AniWatch website.