It looks like Choo Sung Hoon and Yano Shiho's lovely daughter Choo Sarang and Uhm Tae Woong and Yoon Hye Jin's pretty daughter Ji On visited Song Il Kook's triplets, Dae Han, Min Guk, and Man Se, at their house.
Yano Shiho posted a few photo series on her Instagram, simply writing "Reunion!", while Ji On's mom Yoon Hye Jin posted a fun Instagram video, saying, "Ji On who was late, and when she saw the legos and felt awkward, oppa pulled her aside and read to her #EvenMyHeartsFluttering With the oppas and unnie who share the same memories as [us] for the first time in a long time (heart). Have a good weekend."
Hope they all had fun!