The butterfly makes a cocoon and binds itself, using its life to realize a dream. This is not a myth, it comes at the cost of life. Thousands of years of loneliness will eventually release the bitter resentment. Loving you again may not be the best way to atone, but it is the only one available... Die'er will eventually be bound by the cocoon she made, and the promise she was given may be destined to never be fulfilled. But the dream cocoon is still there, but where is the hope? Happiness also has a source. Can we have it again at the end of the original? The memory of praying should not disappear, but it seems that there is no way to convey the meaning... Dream, let go for the last time, let the lover have a good dream about the ending of "Dream Prisoner of Butterfly". Ten centuries of cruelty, what can be exchanged for a lifetime of togetherness?