Actor Kim Jung Tae released an adorable picture of his sons, who are affectionately nicknamed 'Yakkung' and 'Yarong'. He tweeted the photo on May 6 with, "In the middle of educating Yarong-nim about the eyes, nose, and mouth."

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Kim Jung Tae and his son Jihoo ('Yakkung') joined the cast of KBS 2TV's 'Superman Is Back' on May 4. In this picture, 'Yakkung' does appear to be trying to teach his younger brother about his face for an adorable, brotherly moment!

Netizens said, "Kim Jung Tae, 'Yakkung,' 'Yarong,' are cute," "So 'Yakkung's younger brother was 'Yarong,'" "How adorable," "So cute," and more.