Prologue Completion
The prologue of The Legend of Heroes: Trails in the Sky SC begins with Estelle in Grancel Castle - Garden Terrace. Walk up the stairs, then left up the first set of carpeted stairs, and turn left, continuing until you see a staircase leading up to trigger a long cutscene.
After the cutscene, you will regain control of Estelle in the City of Rolent. Head down the stairs, then south, and exit the airport. Continue south to leave the city and reach Elize Highway. On Elize Highway, proceed until you encounter a 3-way intersection, then take the upper-left path to arrive at Estelle's home, where additional cutscenes will play.
In Le Locle Canyon, after a cutscene, go upstairs and into the room furthest down the hall to the left of the flower vase. Estelle will change, and you will automatically receive Joshua's Harmonica, Break Rod, Enhanced Leather, Reinforced Boots (already equipped on Estelle), and 1000 mira. Descend the stairs and examine the chair directly across from Kurt at the dining table (indicated by a "!" mark). Following the dialogues, you will acquire a new combat orbment and a quantity of sepiths.
Once Kurt departs, speak with Phyllis to obtain a Recipe Book, the Nature's Bounty recipe, and its associated ingredients. Engage Phyllis in conversation again to access her shop. For completion, purchase a copy of Liberl News - Issue I. You can also buy a Herb Sandwich to learn its recipe upon consumption. Speak to Robert, who is wearing an orange uniform, to review topics concerning orbment setup and quartz, or refer to the guide's dedicated section. Speak to Robert once more and select Upgrade/Exchange, then Quartz, to synthesize HP 1, Attack 1, Action 1, Defense 1, and Evade 1. You may synthesize additional quartz as you prefer, but these are the minimum recommended for your inventory.