Free!: Timeless Medley - The Promise

Middle school freshmen Haruka and Makoto join the school swim team, and have to join forces with their new teammates to win.

An urban legend says that lighting fireworks at an abandoned airfield will beckon the "summer ghost," a spirit that can answer any question. Three teenagers, Tomoya, Aoi, and Ryo, each have their own reason to show up one day. When a ghost named Ayane appears, she reveals she is only visible to those "who are about to touch their death." Compelled by the ghost and her message, Tomoya begins regularly visiting the airfield to uncover the true purpose of her visits.

Shouyou Hinata, after losing to Kitagawa Daiichi Junior High's setter Tobio Kageyama in his first official volleyball match, transfers to Karasuno High, intent on finally having a proper volleyball team and getting his revenge on Kageyama. Upon arrival at Karasuno, however, Hinata finds out Kageyama has also gone to Karasuno. Initially at odds with each other, the two form an oddball combination and fight together with the other members of the volleyball club. Karasuno reunites with a former rival school, Nekoma High, in a practice match and reignites their school rivalry.

Yuuta and Rikka are in their third year of high school. One day in Spring, Touka declares that she will take Rikka to Italy with her, as her job has stabilized there and thinks they should migrate together as a family. Touka is also worried about Rikka not being competent enough to advance to universities in Japan. The gangs from the club suggested Yuuta, who doesn't want to be separated, to elope with Rikka!! A runaway drama throughout Japan begins.

Kuroko reunites with the "Generation of Miracles" when former rivals are humiliated in an exhibition game against a notorious street basketball team.