Rumor has it that a group of people entrenched in Birdcage Mountain are secretly building a very powerful weapon - a "mass murderer" (weapon of mass destruction) - and another group is closely following the rumor. They sent their own agents to penetrate inside the Toranaga Mountains for reconnaissance. Subsequently, they sent troops to attack Birdcage Mountain ...... short film before finally revealing what this "weapon of mass destruction" that has attracted the world's attention is, can be described as suspenseful