Book 3 (Soobin's story)is the journey of TXT and their girl, Katelyn Blue...When hears that Gyu has left the group and gone home to be with his wife, Kate, all hell will break loose in the TXT house. Soobin had been trying to stay on course for his health, but this news sends him heading for the deep end. Not only with the guys but also with Kate. Kate and Gyu's marriage will also be caught up in a whirlwind with the arrival birth of their baby.