"He used his ashes to bake heirloom porcelain, and I spent the rest of my life repairing my broken heart. The color of the sky after the rain is the shape of the broken blood vessels when we fell in love."
What was broken on the rainy night was not only the porcelain plate from the official kiln of the Song Dynasty, but also the bloody truth that spanned twenty years.
When cultural relic restorer Su Wan bumps into upstart businessman Fu Yunshen on a rainy night, his blood-stained fingertips awaken his sleeping sense of destiny. When she stepped into the Fu family's ancestral home to repair the "engagement gift", the mottled memory of the fire coincided perfectly with the family tree in the secret room - the flame birthmark on her lower back was the last link of the Ouroboros totem that only heirs of the Fu family had.
"Can Miss Su repair the broken porcelain and repair the time it burned?" Fu Yunshen mixed cinnabar into his own blood, and every crack in the golden frame oozed blood and tears on the moonlit night. He gave her the unique skill of a Song Dynasty craftsman, but allowed her to witness him exchanging rings with a famous lady at the engagement party; when he was ill late at night, his blood vessels glowed with cobalt blue cold light, but he fed her anti-cancer drugs disguised as vitamin tablets.
When the fire video revealed the truth about Fu's father setting fire and killing his wife, and when the restored porcelain plate showed the thousand-year love vow of "Better broken than intact", Su Wan finally understood Fu Yunshen's paranoid tenderness - it turns out that some people are destined to be like fire in a dangerous building from the moment they meet. Only by kissing the ashes in each other's eyes can the curse passed down from generation to generation in the blood be burned away.