The triplets aren't as studious as Xibao and Fubao. Although they're a bit smarter than average children, their main focus is still on eating and playing, just like other kids. Luckily, as parents, Lu Jiang and Feng Qingxue only wish for them to grow up healthy and strong, without pressing them to be extraordinarily intelligent. As a result, the triplets are currently playing steel cannon with other children and enjoying themselves so much that they don't want to stop.
Playing steel cannon involves molding a lump of wet mud into a ball or egg shape, then throwing it with force to make a loud "pa" sound.
Lu Erxiong, being the strongest, makes the loudest sound and always earns cheers and applause from everyone. This little fellow then waves to them like a commander inspecting troops, which makes Feng Qingxue feel an irresistible urge to drag him home immediately.