Sagittarius is a Celestial Spirit known for his distinctive horse costume and impressive archery skills. He's currently summoned by Lucy Heartfilia and rarely misses with his bow and arrow.
The Galuna Island townsfolk offered his Gate key as a reward—along with 7 million Jewel—to whoever could break the island's curse. Team Natsu took on the job and succeeded, though they had to refuse the monetary reward since they'd tackled it without proper guild authorization. The islanders gave them Sagittarius's key instead as a token of gratitude, which Lucy has kept ever since.
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