TV series
In this "romantic comedy but sometime serious magical school story," life as Arata Kasuga knows it is wiped out by a bizarre incident known as "Collapse Phenomenon," which causes worldwide destruction and takes his cousin Hijiri Kasuga to the next world. To resolve the "Collapse Phenomenon" and bring back Hijiri, Arata enrolls in the Royal Biblia Academy. Waiting in the school are seven beautiful female magic users — the Trinity Seven.
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Checked Jul 22, 2026
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In this "romantic comedy but sometime serious magical school story," life as Arata Kasuga knows it is wiped out by a bizarre incident known as "Collapse Phenomenon," which causes worldwide destruction and takes his cousin Hijiri Kasuga to the next world. To resolve the "Collapse Phenomenon" and bring back Hijiri, Arata enrolls in the Royal Biblia Academy. Waiting in the school are seven beautiful female magic users — the Trinity Seven.
Cast, crew and production details
Yoshitsugu MatsuokaArata Kasuga (voice)
Yumi HaraLilith Asami (voice)
Ayane SakuraLevi Kazama (voice)
Nao ToyamaSherlock Lieselotte (voice)
Shin-ichiro MikiGakuenchou Biblia (voice)
Rie MurakawaYui Kurata (voice)
Yoko HikasaMira Yaman (voice)
Aya UchidaArin Kannazuki (voice)
TV TokyoJapan
AT-XJapan
Seven ArcsJapan
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KADOKAWAJapanWatch options above are for the show and may vary by season or episode.
Episode 1
Arata Kasuga, a high school student, is being targeted by a girl with humongous boobs. In exchange for his life, Lilith says that she can erase his memories, but he chooses the third option. As a result, he ends up at a magic school, but why is there a naked girl in the men's bath?
Directed by Hiroshi NishikioriWritten by Hiroyuki Yoshino
Where to watch Trinity Seven
Episode 2
In order to become a mage, you need a research theme which archives one of the seven deadly sins. While thinking about what his theme will be, Arata and 3 others are locked in a barrier, with no exit to be found. But then Lilith and the others find themselves needing to use the restroom... Good luck, girls!
Directed by Maki KodairaWritten by Hiroyuki Yoshino
Where to watch Trinity Seven
Episode 3
It's summer. The gang's on a southern island, and there's cute girls in swimsuits abound. Arata's cooking yakisoba for some reason, but these things happen. The quartermaster is repairing the school that Arata destroyed in his collapse phenomenon. The girls enjoy a mixed-gender bath, and the demon lord candidate decides on a theme--control.
Directed by Hiroshi NishikioriWritten by Hiroyuki Yoshino
Where to watch Trinity Seven
Episode 4
A power leaks from underneath the school, Arata and the gang head down into the labyrinth to protect the school from the collapse phenomenon.
Directed by Sumito SasakiWritten by Hiroyuki Yoshino
Where to watch Trinity Seven
Episode 5
The girls are running in their exercise outfits, with the boobs swaying to and fro. Arata's heart races. Everyone's having great time, and then a ghost appears in the library. Arata and the gang go to check it out, and are forcefully transported to the "Eternal Library". There they find the lost Trinity Seven!
Directed by Hideaki UeharaWritten by Hiroyuki Yoshino
Where to watch Trinity Seven
Episode 6
Liese, the last Trinity Seven, appears in the Eternal Library bearing a demon lord seal, making her a demon lord candidate, as well. She tries to entice Arata to join the evil mage side to help save Hijiri, and kisses Arata while he's unsure what to do. Arata has his magic stolen from him, and Liese decides to attack the school.
Directed by Yoko FukushimaWritten by Hiroyuki Yoshino, Shogo Yasukawa
Where to watch Trinity Seven
Episode 7
The headmaster's grimoire, Solomon's Gate, has activated. Even high level mages go crazy if they stare at it too long. Liese escapes battle with the headmaster, and attacks Arata and the others, where she uses her ultimate secret technique, Final Crest. And then, the school in the West falls when Liese freezes time...
Directed by Takeshi NinomiyaWritten by Hiroyuki Yoshino
Where to watch Trinity Seven
Episode 8
Arata is appointed to be the second in charge for the censorship committee. The whole gang is transported to the destroyed Royal Liber Magic Academy, and there he finds his long lost cousin, but...
Directed by Fujiaki AsariWritten by Hiroyuki Yoshino
Where to watch Trinity Seven
Episode 9
Arata and the others appear in a world floating in a rift in the sea of parallel dimensions. Monsters attack. The legendary grimoire, "Fragments of the Iliad" challenges them to a fight. An evil power awakes in Arata due to his anger when the Astil Codex are sealed...
Directed by Shunji YoshidaWritten by Hiroyuki Yoshino, Shogo Yasukawa
Where to watch Trinity Seven
Episode 10
The ultimate demon lord, Astral Trinity, shows up in the form of Arata with a grotesque new appearance. Hijiri appears as well, and the others discover that she is a high-level mage whose goal is to kill Arata and destroy the school.
Directed by Kiyomitsu SatoWritten by Hiroyuki Yoshino
Where to watch Trinity Seven
Episode 11
Lugh attacks the school while Arata and Mira are being held far away. Yui evacuates everyone in the school into her dream to protect them, and Levi sets out to fight alone. But Lugh is a demon lord candidate who has obtained a demon lord element.
Directed by Hideaki UeharaWritten by Hiroyuki Yoshino, Shogo Yasukawa
Where to watch Trinity Seven
Episode 12
It's the last episode, and Hijiri and Arata have their final showdown. Lugh joins in the fight, along with the Trinity Seven--Lilith, Levi, Arin, Mira, Akio, Yui, and Liese. Why is she attacking Arata? And what secret does Arata hold?
Directed by Hiroshi NishikioriWritten by Hiroyuki Yoshino
Where to watch Trinity SevenEpisode information updated Jul 22, 2026
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