Ep. 9: El personal del Instituto de Evolución Ultra viaja a un balneario termal mientras un enemigo acecha cerca.

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Futaba Mihara, who was assigned to take Hokuto's place as the acting director, is wondering how to put the Shinkalion drivers with unique personalities together. Commander Shinpei Izumi, who learns about her trouble, proposes the idea of a hot spring trip for all the institute staff including Hayato and others. Strangely, the enemy appears not far away from the trip’s destination. (Source: Shinkalion Wiki)