He's Usagi's childhood friend and betrothed through an arranged marriage, though their dynamic has always been toxic. He regularly manipulates her by weaponizing guilt over her brother's death—a death he actually caused himself through his own negligence. It's a control tactic he's relied on since they were kids.
His rise through the Anti Magic Academy was accelerated with help from Mephistopheles, a relic eater, allowing him to climb the ranks and join the executive committee in a surprisingly short timeframe. Things fell apart when Takeru intervened to stop him from assaulting Usagi, forcing him to abandon the academy afterward.
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