6 - Amidst a Snowstorm of Love - the ML's niece seems to be below school age, based on her babbling and coordination and how she's tongue tied when the FL asks who she is.
Bonus - Hospital Playlist - ML's son is 5 and in Kindergarten here. I guess if he's old enough to game his dad for an second egg drop sandwich, we should consider Kindergarten school age.
7 - Pinocchio - Ahn Chan Soo has three kids: a baby, a toddler, and a school age oldest child.
8 - Four year old prince played by Wu Lei in The Young Warriors
