A prequel to the 2013 Kyoto Animation series Free! which is an adaptation of light novel High☆Speed!
内山昂輝
as Ikuya Kirishima (voice)
島﨑信長
as Haruka Nanase (voice)
鈴木達央
as Makoto Tachibana (voice)
佐藤聡美
as Nagisa Hazuki (voice)
野島健児
as Natsuya Kirishima (voice)
宮野真守
as Rin Matsuoka (voice)
日笠陽子
as Rei Ryuugazaki (voice)
鈴木千尋
as Kisumi Shigino (voice)
悠木碧
as Sousuke Yamazaki (voice)
日野聡
as Nao Serizawa (voice)
豊永利行
as Asahi Shiina (voice)
