為了尋找掉落魔脊山山谷的婁震戒以及七殺天凌的行蹤，殤不患等人在谷底進行搜索，卻誤入了生長著奇特植物的廣闊洞窟。 懷抱著復活魔神的野心卻遭受阻撓的妖女・刑亥，與西幽的邪教門派「神蝗盟」聯手，再次布下天羅地網，阻擋在凜雪鴉與殤不患面前！
这部电影告诉一个叫莉莉的女孩的故事。在她二十岁生日那天，祖母告诉她，她即将继承一项神秘的家族技艺。在继承仪式上，她出人意料地回到了18世纪的日本。在那里，她来到了一个受到恶意艺妓威胁的小村庄。因为爱上了村子里的一个年轻人，莉莉决定保护村子。
Sue, Cheryl, and Lexi are best friends. They do special things on their birthdays every year because they were all born on the same day. It's their 18th birthday now, and they're starting to lose their virginity.
