Arata Kasuga is the Demon Lord of the Superbia Archive with the ability to nullify and copy magic. His hometown was destroyed and his cousin Hiriji disappeared that led him to become a Magus to save her.
Hijiri Kasuga is Arata's cousin and childhood friend who disappeared due to a Breakdown Phenomenon. It was later revealed that she is a Magus sent by the Royal Liber Academy to become a member of Iscariot, which seeks to destroy Arata and the Trinity Seven.
Lilith is a teacher at the Magic Academy. She possesses the ability to manipulate magical energy to create an effect. She is the one who introduced Arata to the magic world, becoming one of his earliest allies and friends, watching and supporting him since.
DID YOU KNOW?
There are seven categories of magic, or “Archives”, and specifically refers to a magician’s specialization in the craft. The seven Archives are named after the seven deadly sins: Luxuria, Superbia, Acedia, Ira, Avaritia, Gula, and Invidia. Starting from the top, Luxuria, the latin term for lust, is magic that can either consume or create. Lilith Asami and Arata Kasuga are of the creation variant while Abyss Trinity wields the destructive variant. Superbia, which translates to pride, focuses on buffing the user. Lieselotte Sherlock and Mira Yamana use Superbia, with the former able to copy and erase other magic, and the latter reflecting instead. Acedia, meaning sloth, focuses on mobility, specifically minimizing it. Lieselotte and Arata can teleport themselves (thus minimizing physical movement) and Selina Sherlock can bind targets. Next is Ira, which channels the powers of gods, literally bringing down their wrath onto foes. This is wielded by Arin Kannazuki, who uses Norse runic magic both offensively and defensively. The next is Avaritia, translating to greed. Magic of this class is centered on manipulation and is the chosen Archive of Yui Kurata, who uses songs to cast illusions or pull people into a dream world. Gula, or gluttony, with magic whose strength is scaled with the emotion feeding it. Invidia, or envy, has magic users like Levi Kazama who can create illusions, and Rogue who can move at light speed, both specialized in biting the eye.
The Trinity Seven characters are all very powerful mages in seven different categories, and that’s just the ones on this list! The colorful and magical cast has more characters that all study the different Archives, so the eight best on this list are only a small collective of the number of magic users you can meet in the world of Trinity Seven.
Arin Kannazuki is the Trinity Seven of the Ira (Anger) archive and uses Chaotic Rune magic. She looks exactly like Arata’s cousin Hijiri. She is Arata’s partner, becoming an early ally and close friend to him.
Lieselotte Sherlock is the older sister of Selina and the Trinity Seven of Acedia. She is the twin sister of Selina. She vanished in a school library six months before Arata enrolled at that school. She is the last of the Trinity Seven to meet Arata.
Mira Yamana is the Head of Grimoire Security and one of the Trinity Seven. She is hostile to Arata but later warms up to him during the investigation of the Liber Academy's disappearance where they are stuck in the world created by Ilya.
Yui Kurata is a special magus who is a member of the Trinity Seven who lives in the dungeon underneath the academy. She was rescued by Arata and other Trinity Seven members. She is Levi's close friend.
Abyss Trinity is the Crimson Magic King and the Magic King of Luxuria. He is the father of Lilith Azazel. After his body was destructed, he lives on the spiritual manifestation of the Magic King Weapon he wielded before his death.