The BEST episodes written by Kenji Sato
#1 - Game Master and Satan Slave
Trinity Seven - Season 1 - 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.
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#2 - Dream World and Sub-Administer
Trinity Seven - Season 1 - Episode 5
Arata wakes up to Yui and Arin sleeping beside him naked before Lilith comes to his room to wake him up. During physical exercises class, Yui and Arin cling to Arata while he watches the girls doing exercise. Mira and Akio appear, and Mira issues a warning to Yui stating that if she loses control again, Mira will have to take her out. Serina shows up, getting the impression all four of them are fighting over Arata. Lilith and Levi appear, Lilith assuring Arata the girls aren't fighting over him, while Levi gets excited to fight against Akio. Everyone excluding Mira and Lilith activates their Magus Mode, but the fight is cut short as Yui uses her magic and transports everyone to her dream world. Before leaving the dream world, Arata tells Yui he will be her friend, which in turns makes her very happy. Later, Akio and Mira talk about all the breakdown phenomena happening recently.
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#3 - Magus and Alchemist
Trinity Seven - Season 1 - Episode 3
Before all of the students in the academy went to the southern island, it's shown that Yui saved Arata from certain death by dragging him into her dream world. She then proceeds to tell him about magic and the seven archives of magic. She also explained he might able to control his powers by choosing his thema, which is founded in either of the archives. He then proceeds to stop the Breakdown Phenomenon after being released by Yui and choosing his thema. The magic that stopped the Breakdown Phenomenon also caused all the people around him, except Mira, who reflected his magic, to have their clothes dispelled and destroyed. On the island, he showed Serina his new-found magic prowess, breaking her swimsuit in the process. In the hot springs, Arata requested that Lilith demonstrate her magic. She reluctantly accepts it after Arata's constant pleading. After witnessing her spell, Arata requests the grimoire to copy the spell for him, which works out successfully, surprising the entire group.
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