I'm Only A Substitute Consort, But The Emperor Won't Let Me Leave

身代わり婚の後宮妃は皇帝陛下に逃がしてもらえない, Migawari Kon no Koukyuuhi wa Koutei Heika ni Nigashite moraenai, I'm Only a Substitute Consort, but the Emperor Won't Let Me Leave

The Time Mage's Strong New Game ～I Returned To The Past To Rewrite It As The World's Strongest