影片以天狼星双星系统神话为背景，讲述水龙王之子与精灵公主跨越海洋与火焰两个世界的冒险故事。通过融合海洋漩涡与火焰燃烧的视觉元素，展现角色冲破宿命枷锁的奇幻历程，其核心设定基于双星交汇的天文现象进行艺术化改编。
Toru Furuya
Sirius (voice)
Mami Koyama
Malta (voice)
Keiko Han
Piale / Various Characters (voice)
Michiko Nomura
Ruu (voice)
Ikue Sakakibara
Teak (voice)
Jūkichi Uno
Moelle (voice)
Kenji Utsumi
Glaucos (voice)
Reiko Mutoh
Themus (voice)
Hiromitsu Suzuki
Mabuse (voice)
