Rimuru learns about Clayman and the schemes of the Kingdom of Falmuth, but no matter how hard he wishes for it, his fallen comrades and their peaceful lifestyle will never return. He's just about to give up when Eren tells him of a fairy tale that might offer a glimmer of hope. The probability of success is about 3%... but if Rimuru can manage to become a Demon Lord by taking in the souls of 10,000 humans as nourishment, he just might have a chance at bringing his comrades back to life. As Falmuth's army of 20,000 men marches toward Tempest, Rimuru takes hold of that hope and decides to become a Demon Lord.
This was the first thing she accomplished 
upon becoming a Demon Lord.
كان هذا أوّل شيء أنجزته عندما
أصبحت سيّدة شيطان
Dies war die erste gute Tat, die die zum Dämonen
gewordene Drachenprinzessin vollbrachte.
Esa fue su primera hazaña
como Rey Demonio.
Esa fue su primera hazaña
como Rey Demonio.
Ce fut le premier haut fait du roi-démon
qui avait été une princesse dragon.
Questa è stata la prima grande conquista 
della Principessa dei Draghi, trasformatasi in un Re demone.
Esta foi a primeira conquista
da princesa imperatriz dragão,
И это… стало первым деянием принцессы,
обратившейся Княжной Тьмы.