Thermal: Blue

: During a tennis club tryout, Tamaki accidentally hits a tennis ball that damages a glider belonging to the university’s Aviation Club.

: Initially reluctant, her perspective shifts when the club captain, Jun Kuramochi, takes her on a flight. She becomes captivated by the experience of soaring through the sky and discovers a "blue thermal"—an updraft that occurs under a clear blue sky that can push a glider higher . Blue Thermal

: Tamaki's older sister and a champion glider pilot from a rival university who remains cold toward Tamaki due to family history. : During a tennis club tryout, Tamaki accidentally

: A former volleyball player who initially hates being "too sporty" but turns out to be a natural genius at piloting gliders. : Tamaki's older sister and a champion glider

: Unable to pay for the expensive repairs—estimated at two million yen —she is pressured into joining the club as a helper to work off her debt .

: The brilliant but pressured captain of the Aviation Club who sees Tamaki's potential.

: A fellow club member who initially clashes with Tamaki but becomes a key teammate.