The alternation of hearts, the call of the soul, the reincarnation of fate, are they born together and will they die together? Are they still together after rebirth?
The sweetness in life, the various tortures of the soul, and the rebirth of strangers are the opportunity given to them by God to meet, the mercy given to them by the God of Death, and the fate that they miss each other in their hearts.
It was that painting that made them get to know each other again and recall that perfect love. Where did this perfect love come from, and how will God arrange it?