Perfect Crown (also known as Wife Of a 21st century Prince) is a 2026 kdrama set in an alternative modern Korea with a constitutional monarchy, following chaebol heiress Sung Hee-joo (IU) and Prince Lee Yi Ahn (Byeon Woo-seok) who enters contract marriage to overcome their contrasting struggles: her commoner status despite wealth, and his powerless royal title. leading to a romance that defies social barriers.