Answer
대하드라마(Daeha Drama) which means ‘Epic Drama’ in Korean
Explanation&Learning Korean
This is a pun involving the word ” 대하” (big shrimp) and “대하드라마” (epic drama). In Korean, “대하(Dae ha)” can mean both “epic” and “big shrimp.” So, “대하드라마(Dae ha drama)” can be interpreted both as an “epic drama” in the usual sense and humorously as a “shrimp drama,” where a shrimp is the main character. This kind of wordplay is typical in Korean dad jokes.