Luk-Do

Soon Luk-Do (元绿豆, yuán lǜ dòu) is the oldest daughter of the Foolish Magistrate and Tai-Tai. She is the sister of Ba-Do and Huang-Do. For some reasons, she tends to bicker with her sisters, but not always. Luk-Do shares in handful of arguments with her sisters, but can usually stay cool, possibly even more than her elder and younger sister. Luk-Do has a pigtail loops hairstyle and wears a yellow robe adorned with white trimming. Luk-Do is the tomboyish of the three.

Unlike Ba-Do and not Huang-Do have ever had any episodes or segments central to them particularly, but all of them often have been featured in secondary stories, as they've had significant roles in the series as well. Along with her sisters, one of her most eminent roles (if not the most eminent) is in "Master of Mistakes". As Sheegwa is practicing calligraphy, the girls are practicing an assortment of crafts. However, they get so frustrated with unsuccessfully mastering their crafts they call it quits. Later, the episode's titular character is asked to come to their home for help. Just as he is known for doing so, once each girl subsequently sees him make blunders with the same things they did, they are convinced and never give up and keep practicing.

Like her sisters, she is named after a different colored bean. When translated to English, Luk-Do's name is "green bean" or "mung bean".