Black Crown

Black Crown is the guild of mages focused on in the Highschool Project series. It was first created when Amber Lucifer, the Princess of the Underworld, decided to permanently move to the mortal world in 2019, with its first members being her and the reincarnated devils that had been placed under her care.

Below is a list of all members and past members; their status as of the end of the series; their zodiac sign; their primary form of magic; and their classification as a mage.

Plot Overview
Book 1, God-Slayer: Black Crown is the guild that Zane Jackson, the main protagonist and a recently reincarnated devil, is placed under. Throughout the course of the series they deal with minor missions until their first big one: attempting to find and retrieve the Secret of God.

Later, they're sent out into war against the Alliance — Heaven and the fallen angels — which results in the death of two of their members.

Book 2, The Dragon-King Alliance: Black Crown competes in the Annual Mage Tournament, with a total of seven members — five permanent members and two temporary members — where they hope to claim the title of the strongest guild, and earn a powerful artifact that can resurrect the dead.

Later, alongside the Dragon-King Alliance, they go into battle against Dragon Claw in an attempt to stop them from opening a portal to the Absit Lands, which would result in the invasion of thousands of dragons.

Trivia

 * Half of the mages in Black Crown are capable of using Lightning Magic; however, only one of them uses it as their primary form of magic
 * The name Black Crown comes from Amber's Black-Fire Magic, and the fact that she's the Princess of the Underworld
 * All active members of Black Crown are ranked at least SS-Class — except for Lucy — with Zane and Divinos being ranked at SZ-Class — Zane only when transformed into one of his more powerful modes — and Amber and Lagann being ranked at SX-Class.
 * Both pairs of siblings — Kieron and Melanie; Mio and Shota — never become a permanent member of the guild at the same time as their sibling
 * Only one non-active member of Black Crown — Ruben — is alive as of the end of the series
 * Two of Black Crown's members — Lagann and Jay — were first introduced as antagonists, with both of them hoping to kill Zane one day
 * Three of Black Crown's members — Zane, Amber and Kieron — use Fire Magic; however, they each use a different variation of it, with Zane using normal Fire Magic and Fire Devil-Slaying Magic; Amber using Black-Fire Magic; and Lagann using Blue-Fire Magic.
 * It's stated by Felix McKnight that Black Crown is much more family-like compared to other guilds of mages, who mainly focus on teaming up to take on missions and earn rewards to boost their wealth and status
 * Black Crown has four mages that are hosts to lost-gods — Zane, Lucy, Kristina, and Kieron
 * In Tsundoku No Spirit — a book that takes place in the same universe as the Highschool Project series — Zane, who cameos, mentions to the protagonist — Izumi Brewer, also known as Mystogan — that Black Crown would easily be able to decimate the enemy guild of mages, who play the role of the book's villains and that he may even be able to do it alone
 * Not one of the eight major villains of the series ever directly say the name Black Crown, usually referring to the group of mages as something else
 * Black Crown has three Dragon-Slayers; two Devil-Slayers; and one God-Slayer