Yo-kai Watch: Forever Friends

Sakura Motomachi, Tokyo in the 1960s. Shin Shimomachi, a boy who lived happily, despite being poor, loses his mother, his only family member and falls into deep misfortune. Itsuki Takashiro, a boy who saves Shin, also lost his older sister. Those two boys are joined by Tae Arihoshi, a sorcecer girl who can see Yo-kai and together with Shin's guardian spirit Sū-san and new Yo-kai such as Nekomata, they take on a mysterious incident in order to retrieve the souls of their precious family! And what is the shocking truth that awaits them...!? This is a story about the friendship formed between three children and Yo-kai.

The film also tells the origin of how Lord Enma became the ruler of the Yo-kai World before the original anime series.

• Atsumi Tanezaki as Shin Shimomachi (下町シン, Shimomachi Shin), The wielder of the Yo-kai Watch Elda Zero. Despite his poverty, he lived happily until his mother died, after which he fell into great despair. He then met his fellow Yo-kai friends and was joined by two children named Itsuki Takashiro and Tae Arihoshi, with the three planning to return the souls of the citizens of Japan from the soul-devouring fox Yo-kai Tamamo no Mae.
• Etsuko Kozakura as Nekomata (猫又, Nekomata), a classic black cat Yo-kai who meets and befriends Shin, who lost his mother, later adventuring alongside him and a group of children in the Yo-kai World. He has both a Shadowside form and a Godside form, the latter being known as 猫王バステト (Nekoō Basuteto).
• Ryōhei Kimura as Itsuki Takashiro (高城イツキ, Takashiro Itsuki), a young boy who saved Shin and is the wielder of the Yo-kai Watch Elda God. Like Shin, his older sister is gone because her soul was devoured by Tamamo no Mae.
• Nao Tōyama as Tae Arihoshi (有星タエ, Arihoshi Tae), a young female sorcerer from the Arihoshi Clan who is likely related to Akinori from the fourth film. She is one of the Three Children who adventures in the Yo-kai World during the events of the film.
• Shun Oguri as Shien (紫炎, Shien). He's one of the candidates for the Yo-kai World's next ruler and son of Ancient Enma, teaming up with Tamamo to devour souls and gain power.
• Chiemi Blouson as Tamamo (タマモ, Tamamo), a humanoid fox Yo-kai who devours the souls of the citizens of Japan and works alongside Shien. She's also known as Tamamo no Mae (玉藻前, Tanamo no Mae) in her Shadowside form.
• Ryōhei Kimura as Lord Enma (エンマ大王, Enma Daiō), The ruler of the Yo-kai World and grandson of Ancient Enma. As initially teased in Corocoro, Enma has three new forms that were introduced in the movie: Yasha Enma, Yasha Enma Rasetsu & Yasha Enma Benibana.
• Takehito Koyasu as Zazel (ぬらりひょん, Nurarihyon), a servant and apprentice of Ancient Enma and later of Lord Enma.
• Shintaro Asanuma as ざしきわらし (Zashiki-Warashi), a guardian spirit focused on pursuing his beauty. Like Nekomata, he has a Godside form, which is based on a Tengu.