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Tear Jerker: Fairy Tail The Movie Phoenix Priestess
The climax of The Movie, when it's discovered that once the Phoenix monster is destroyed, Eclair's life will end as well. Lucy, having come to personally know Eclair throughout the film begs Makarov to spare her. Even when Eclair herself is content with her impending fate, Lucy practically screams at her to keep on living. Even Makarov doesn't like this decision but knows it's the only way to save everyone and that it must be done.