Kang Seulgi is the school's track star, the MVP, and while she's definitely tackled all sorts of difficulties before, even all the challenges in the world couldn't have prepared her for her greatest challenge yet: motherhood. Thankfully, she's got the advantage of having Bae Irene by her side this time around. Or, Seulgi and Irene are in the same Health class, and they're paired up to take care of a fake baby together.