Fallen Prince? I Married the Warrior Queen

Reborn as the disgraced Ninth Prince awaiting execution, he is framed for treason and the massacre of 100,000 soldiers. With a blood-written letter, he turns the tables and is forced into marriage with the empire's strongest female war god. Hiding his true power, he outwits the suspicious emperor, tames his fierce wife, crushes every traitor, and rises to become the supreme martial master.