Following the day after they reached the top of the world, Chito and Yuuri are faced with a life or death decision as they decide to journey towards the center of the mysterious layer. SPOILER ALERT: The story continues right after the ending of the Girls Last Tour / Shoujo Shuumatsu Ryokou manga! (Girls Last Tour, Shoujo Shuumatsu Ryokou fanfiction)
15 parts