Viktoriya Ivanovna “Visha” Serebryakov
Momonga/Ains Ooal Gown
Matheus Johann Weiss
Aura Bella Fiora
Reinhard Van Astrea
Mare Bello Fiore Puck
Kurone Mishima (KonoSuba!)
Seira Minami (The Rising of the Shield Hero)
Shinichirou Otsuka (Re:ZERO) Shinobu Shinotsuki (Saga of Tanya the Evil)
Carlo Zen (Saga of Tanya the Evil) Kugane Maruyama (Overlord) Natsume Akatsuki (KonoSuba!) Tappei Nagatsuki (Re:ZERO)
Yusagi Aneko (The Rising of the Shield Hero)
One day, a magic button suddenly appears. The protagonists from KonoSuba, Overlord, Re:Zero − Starting Life in Another World, and Saga of Tanya the Evil all press the button occasionally, unintentionally and move to a parallel world — another brand new isekai — where a new story featuring high school life begins.
Soon, they are joined by protagonists from The Rising of the Shield Hero and Cautious Hero: The Hero Is Overpowered but Overly Cautious.
The film will feature the returning cast and staff from the anime's first two seasons. Minoru Ashina (Kaiju Girls, Pure Pure Purea Desu Overlord shorts) will write the script and direct the anime. Minoru Takehara will serve as both character designer and chief animation director. Studio Puyukai (Kaiju Girls, Lord Marksman and Vanadis, Pure Pure Purea Desu Overlord shorts) will animate the work.