After concluding the opening ceremony of the Demon Kingdom Federation Tempest, Rimuru and his companions are invited by the Celestial Emperor Hermesia of the great elven nation – the Magi Dynasty Salion – to visit her private resort island. As the group enjoys their brief vacation, a mysterious woman named Yura appears. A new incident unfolds against the backdrop of the boundless azure sea.
| Genre | : Animasi, Fantasi, Petualangan, Komedi |
| Sutradara | : 菊地康仁 |
| Pemeran | : 岡咲美保, 市道真央, 前野智昭, 古川慎, 千本木彩花, 金元寿子 |
| Rilis Resmi | : 01 January 2026 |