There is romance, but it's more focused on story and Ajane is working on others DLC POV' stories as is currently only one out. Book 02 is for now discontinued. Also:
TTEOTS Premium: Receive all premium content for Book 01 for a flat price! This version contains additional content not found in the free version, such as extra scenes, choices, and full color illustrations. This does NOT include the Extra Stories section, which exists outside the books. There is also individual premium content available for purchase a la carte within the free game, if you’d prefer.
This version acts as a "Season Pass" type bundle, enabling you to receive Premium content for the Book 01 main story, specifically Chapters 01 - 07 released for To the Edge of the Sky. This does not include Book 02 onward or Extra Stories.