The Phoenix of the Cold Abyss Era: the Nine Heavens

A dramatist and money-obsessed princess from another world × a sinister and shameless doting wife Time Travel Goal: Become a principal and torture students with homework and exams—— However, she can't seem to do it - the key to her family's treasury is sealed in a certain college... So, she visited the academy at night, and accidentally met a certain man who doted on his wife. From then on, she began to live a smooth life in another world...