Free! -Dive to the Future-: Build-Up of Early Spring! (Dub)
Plot Summary: Episode 0 of Free!: Dive to the Future was shown at a special Free! event. Episode 1 also pre-aired during this same event. Episode 0 will eventually be included in the BD/DVD release of Free!: Dive to the Future.
Type: spring 2018 Anime
Date aired: 2018-06-23
Other name: Free!: Dive to the Future Episode 0: Soushun no Build-up! (Dub),