'Book of the House of Gu' previously achieved its highest viewer ratings yet, and its now broken its former record.

According to AGB Nielsen Media Research, the April 30th broadcast of 'Book of the House of Gu' achieved a 16.4% viewer rating, which beats its 16.3% viewer rating achieved last night.

Meanwhile, KBS 2TV's 'God of the Workplace' gave 'Book of the House of Gu' a run for their money by achieving a solid 14.5% viewer rating, which is a 1.0% increase from its previous viewer rating of 13.5%.

SBS' 'All About My Romance' fell behind with a 7.8% viewer rating which was a 0.4% decrease from its previous viewer rating of 8.2%. Luckily for loyal fans of this drama, SBS has denied the rumors of 'All About My Romance' cutting its run short due to poor viewer ratings.