Blue Thermal <Original – SECRETS>

: The story tracks her growth as a pilot, her rivalry and eventual reconciliation with her estranged sister Chizuru, and her realization that her true passion lies in the open skies rather than her initial shallow romantic goals. Key Characters

: Tamaki's older sister and a champion glider pilot from a rival university who remains cold toward Tamaki due to family history. Blue Thermal

: 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 . : The story tracks her growth as a

: 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 . She becomes captivated by the experience of soaring