This is a list of rewards obtained for various tasks in Trails in the Sky the 3rd.
Clear Data
If Clear Data from Trails in the Sky SC is loaded at the start of the game, additional items can be found at the west end of the Hermit's Garden:
All sepith ×200- If rank was at least B Rank Bracer (281 BP): All sepith ×200 + Lunar Seal
- If rank was at least A Rank Bracer (380 BP): All sepith ×200 + Lunar Seal + Solar Seal
Bookworm
Across the various chapters a series of books can be found in the Hermit's Garden's bookshelves as a shining spot. Examining a spot permanently adds the books to the library. Obtaining all books grants an 
Esmelas Circlet as a reward.
Fierce/Flighty Fighter
In the final chapter, the fountain at the Hermit's Garden will offer a reward for the result of 300 battles. Having won 300 battles without fleeing once grants a 
Mirror quartz as a reward, while having fled 300 battles grants a 
Reflect quartz as a reward. Only one of the two can be obtained in a single playthrough.
Tempting Fate
At the Depths of the Abyss, if the other three boss fiends have been defeated, the Tempest Pom can be found. Defeating it for the first time grants a Shining Emblem as a reward in addition to the Zemurian Ore. The Tempest Pom can reappear after defeating the other three fiends again, but it won't grant additional rewards.
Jinu
After obtaining 
Jinu as a reward for winning the battle in Star Door 5, defeating the Nightmare Arena with Anelace in the party will make Jinu more powerful.
