The story goes back and forth and entangles two generations of families. Everything seems to be repeating life, just like the symphony of Canon. The melody chases another part from beginning to end, until the last knot, the last chord, they will merge together and never separate. The most lingering music, the twists and turns of life and death, but it is always in the name of love. No matter how they do it, they love others in their own way.