A merchant from the east brings Hinata Sakaguchi a new book. In it she finds surprising information about the Jura Tempest Federation, a nation of monsters. As a former student of Shizu's, what goes through Hinata's mind upon learning about the existence of Rimuru? This special episode gives some hints as to what's coming in the new arc, as well as a look back at Rimuru's exploits thus far.
But I had no idea that 
an unimaginable disaster
لكن لم أكن أدري أنّ كارثة لا يمكن تصوّرها
Denn danach wurden Tempest,
unsere Verbündeten
Pero no sabía
que un desastre inimaginable
Pero no sabía
que un desastre inimaginable
Je n’avais pas la moindre idée
Non avevo minimamente idea dell'enorme pericolo
Mas eu não tinha ideia de que
um desastre inimaginável
В тот момент… я и понятия не имел…