High☆Speed!: Free! Starting Days
A prequel to the 2013 Kyoto Animation series Free! which is an adaptation of light novel High☆Speed!
Actors: Koki Uchiyama, Nobunaga Shimazaki, Tatsuhisa Suzuki, Satomi Sato, Kenji Nojima
Director: Yasuhiro Takemoto
IMDb: 6.9/10