Demon Lord Ramiris tries to argue her way into moving to Tempest, where there's great food, hot springs, and ample entertainment. Rimuru happens to walk into the argument and comes up with a way to make use of Ramiris's skills.
What have I done?! 
I failed to read that far ahead!
ما الّذي فعلتُه؟! فشلتُ في استقراء الوضع
Quel imbécile !
Je n’avais pas pensé à ça.
O que eu fiz?! Não consegui
prever algo tão à frente!
Какой же я дурак!
Совсем об этом не подумал!