自那場大戰以來，已過數百年。高中女生京一日和每天都憑藉著遠古水晶賦予她的蒸汽機車的力量與邪惡勢力戰鬥。她的青梅竹馬佐藤屋涼則在幕後默默支持她。某天，蒸氣機車出發營救被綁架的涼，卻被邀請到一個酷似雪佛龍森林的地方！失去力量的蒸汽機車能否取得勝利？ 【圓滿結局】
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