“Do you know ?

    The speed at which IRBM falls……

    is 5 kilometers per second.”

"Takaki-kun! It'd be great if we could watch the nuclear fallout again together next year."

As you can see, this is a mock-off script from 5 centimeters per second.

Find the original words that was replaced by spore of the mushroom cloud.

Format - 3 words, English form, plural.