The Jura Tempest Federation, with Rimuru as its leader, has formed an alliance with the Armed Nation of Dwargon. Just as Rimuru thinks there are only peaceful days ahead, he senses an enormous mass of magical power heading straight for his location at an incredible speed. When the smoke from its collision with the ground clears, standing in its place is a humanoid figure. She is the Demon Mord Milim, the one and only Dragonoid and the one bearing the nickname "Destroyer." Ranga, Benimaru, and the others who face her are quickly overwhelmed by her power.
I'll swear never to mess 
with any of you ever again!
سأقسم ألّا أعبث مع أي منكم مجدداً
Ich schwöre auch, von nun an
keinen Streit mehr mit euch zu suchen.
¡Juro que no me meteré
con ninguno de ustedes!
¡Juro que no me meteré
con ninguno de vosotros!
Je promets de ne jamais
vous attaquer à l’avenir !
D'ora in poi
Prometo que não vou mais
mexer com nenhum de vocês!
Клянусь, что впредь я никогда
не пойду против вас!