In the drama, D.O. plays the role of Joseon's crown prince Lee Yool. You can tell in his teaser above that Lee Yool is a serious kind of prince, oozing with charisma, skilled in romancing ladies, sword fighting, etc. However, due to a catastrophic event, Lee Yool somehow goes missing and loses all his memory. He goes under the care of a woman nicknamed 'Joseon's oldest unmarried woman' Hong Shim (played by Nam Ji Hyun) for 100 days. 

In addition to D.O's individual teaser, you can also check out a brief, but impactful couple teaser featuring D.O. and Nam Ji Hyun, below. Stay tuned for more teasers of '100-Day Husband', until the drama's premiere on September 10 at 9:30 PM KST!