To start off their last day, B1A4 prepare an exhibition of pictures that were taken during the course of Hello Baby and display them on the sidewalk for people to see. For the last time, B1A4 tumble to earn money to buy toys for their children before moving to a different location. There they are surprised to be faced with a mini gathering of other fathers who are in their 20s. During the mini gathering they talk about their experiences of being a father, play games with the other fathers, and the children prepare a special stage for B1A4. To spend their last moments together, B1A4 then take the children to see the night view of Seoul at Palgakjeong, something that they haven't seen either. While there, they find the slow mailbox and decide to write letters to Hyunwoo and Eunsol that they will receive after a year. Finally, the members mail their letters and present their gifts to the children before sending them off.
