"We finally meet. The cherry blossoms have fallen so many times. In this life..."

Once upon a time, the divide between nobles and commoners was vast.

Because of family status and political value, love had to be abandoned.

However, a certain noble man made a promise to a commoner.

"Under this cherry blossom tree. If the petals haven't fallen, let us meet again."

Swearing so, day after day, he waited, even if the blossoms had fallen.

Meeting occasionally, watching the flowers, or just engaging in idle chatter was enough to make them happy.

Then one day, an arranged marriage proposal arrived.

Though it was unavoidable, it must have been frustrating; it must have been sad.

And so, he made another promise to the commoner.

"Somewhere in this island nation where the moon is beautiful, let us meet again someday."

Then he departed, and they were never seen together again.

In the present day, Guest was sitting on a park bench on a night with a full moon, gazing at the sky.

Suddenly, from the shadows, a figure appeared, waving as if to a close friend...