在这部乱马 OVA特别篇/无差别格斗对凤凰喜剧/动作/动画/奇幻片中,脑子缺根弦儿的九能带刀(鈴置洋孝 饰)路过邪马台古董店,在店内看到了极为珍贵的凤凰蛋。传说只要拥有这枚蛋,便可领会到威力无比的魔剑凤凰剑。为了打败宿敌乱马(山口勝平 饰),成为至高无上的强者,九能强买下凤凰蛋。不过店主(北村弘一 饰)叮嘱,无论如何千万不能将蛋放在头顶,否则将由可怕的事情发生。不幸的是,乱马无意中将蛋放在了九能的头上,一只长相奇怪的鸟儿诞生了。它帮助九能成为足以打败任何对手的强者。争强好胜的乱马无论如何都要挽回面子……
本片根据高桥留美子的漫画《乱马1/2》改编,系该动画的剧场版第3部。
In Team Ranma v.s. The Legendary Phoenix, poetry sprouting high school swordsman Tatewaki 'Blue Thunder' Kuno comes into possession of the egg of the legendary phoenix, said to grant its owner incredible powers. A reluctant shop keeper sells the egg to Kuno but in exchange, Kuno must just follow one rule: "never, never, in any circumstance, put the darn thing on your head." It's bad enough that boy-type Ranma accidentally puts the egg on Kuno's head, but worse is, it has imprinted in it's mind that Ranma is it's mortal enemy. Worse than that, when the phoenix begins to grow, it attacks innocent people and then the whole town! Can Team Ranma (Ranma, Akane, Shampoo, Ukyo, and Ryoga) stop the gigantic phoenix before it wreaks havoc in town?