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Morning light streamed through the tall windows of Astral Heaven Academy, casting a warm glow over the headmaster's office. Dabi had arrived early, carrying the mysterious black rock from auction and the holder he had chosen from the national vault. As he entered the room, he found Headmaster Raghnall Ferrin waiting, already studying Dabi puts unknown holder on the table it's like a peculiar item: an ancient-looking holder, wrought in intricate patterns that pulsed with faint traces of mana.
"Good to see you, Dabi," the headmaster greeted, gesturing toward the holder. "Let's see if this item reveals the any secret."
