Meisaku and others have finally arrived at the last boss of the Isekai Kingdom. That's when they find out that Sweets is actually a mage. But he's never used magic before! Sweets is voiced by Shigeki Nakanishi of NasuNakanishi.
He's gonna transform! 
The final boss usually does.
.سيتحوّل! الزعيم النهائيّ يفعل ذلك عادة
Er verwandelt sich sicher!
Das machen Endbosse!
¡Se va a transformar! ¡Siempre pasa!
¡Se va a transformar! ¡Siempre pasa!
Sûrement une transformation !
Les boss finaux le font souvent !
Si sta trasformando!
Ele vai se transformar!
Os chefes finais sempre fazem isso!
Он во что-то превратится!