The Well's Vengeful Reckoning

A daughter seeks justice for her deceased mother, betrayed by her husband. He threatens to sink her mother's remains to force a false confession. She enlists a palace master to stage a fake drowning, escaping. A suicide note spreads, driving her husband to regret. He finds evidence of the princess's crimes; she tries to destroy it, activating a secret technique. All crimes appear through city wells, visible to all.