That Time I Got Reincarnated as a Slime the Movie: Scarlet Bond

Raja, a quiet kingdom tucked west of Tempest, guards a dangerous secret tied to a potent force ruled by its mysterious queen. Rimuru Tempest, the slime who has grown into a Demon Lord, encounters Hiiro, a lone Ogre survivor, and a new cast of characters slides into the plot. What follows blends political intrigue with personal ties as old loyalties fray and new bonds form. Rimuru must balance diplomacy, power, and trust while enemies circle and allies renegotiate their commitments. The premise signals high stakes and rapid action, and a focus on how relationships sustain or shatter under pressure. As the story widens, small kingdoms collide with a larger threat and Rimuru's leadership is put to the test.

Directed by Yasuhito Kikuchi, the film continues the That Time I Got Reincarnated as a Slime saga from Fuse's light novels and related material, expanding the slate of characters while keeping the franchise's playful mix of diplomacy and action. It brings back familiar voices along with fresh performances that emphasize Rimuru's leadership and humor.

Fans welcomed the film as a milestone in expanding the slime universe, adding Raja's political intrigue and new allies to the Tempest saga. The action scenes, voice performances, and character dynamics sparked discussion online and drew attention to the series' evolving lore. Online threads compare it to previous installments and debate Rimuru's approach to governance.

Critics and fans greeted the movie with solid enthusiasm, praising its tight pacing and confident battles while noting its emotional core. The film explores leadership, trust, and the limits of loyalty, asking how far Rimuru will go to protect companions and a wider world.

Animation is handled by Eight Bit, continuing the studio's polished look for the series. The film draws on the That Time I Got Reincarnated as a Slime lineage created by Fuse, with scripting credited to Kazuyuki Fudeyasu, Junichiro Okumura, and Otoe Yoka under Kikuchi's direction. Eight Bit adds sharper action sequences and nuanced expressions that bring Rimuru and the ensemble to life.