I Traveled to Ancient Times and Became a Female Figure

"The wrong paycheck" was originally a name for weeds, but weeds are tough and still have an unyielding life. One is a female star who climbed up from the bottom, and the other is an eternal female figure who climbed out of the dead. They died in an accident. The two exchanged souls and went to each other's seven years ago. What happened in the past seven years, why did the two people die, and where should they go. Let's see how their weed-like lives bloom into eternal light.