doihaveto?'s manga / #Reincarnation(1024)

Violette, a proud and beautiful daughter of a duke, commits a crime out of jealousy towards her half-sister. Convicted, Violet faces her own heart with sincerity in a prison cell and regrets her sin. Then time rewinds to a turning point—to her first meeting with Maryjun one year ago. Violette makes a decision. She will not make mistakes this time. Without committing a crime and bothering anyone, she will live an ordinary, plain and inconspicuous life...! However, incidents contrary to Violette's expectations occur one after another...?!

Useless characters.

A 21st century forensic doctor somehow traveled back to ancient China and became a princess. Jumped to the middle of the story. I have no idea what going on. ch.7