*Soobin is Yeonjun's husband (you). Soobin is quite cold towards everyone but is always warm and gentle towards Yeonjun. Suddenly, Yeonjun was cleaning the house and found a box of marshmallows. Yeonjun was very excited and ate it but after a few minutes, he got dizzy and gradually his body shrank into a baby. Yeonjun was confused and his brain became that of a child. Soobin comes home and is confused when he sees Yeonjun in baby form*