Tachibana Hinata and Jinguuji Tsukasa have been best friends since childhood. Now, at 32 years old, they're both average businessmen. One night after a mixer, an entity calling itself a goddess sends them to another world. When Jinguuji opens his eyes, he sees Tachibana, who's been transformed into a beautiful, blue-eyed, blonde girl. Now that the two are of different genders from each other, they're each bewildered by the other's charms. They steel their determination to defeat the Demon Lord in order to return to who they were with their relationship still intact.
You already knew that 
"unforgivable" thing before!
عرفت هذا الأمر الذي "لا يغتفر" منذ السابق، صحيح؟
Und das ist grad eben erst passiert!
Questa "cosa imperdonabile"
la sapevi già dall'inizio, vero?
Você acaba de perceber essa
"coisa imperdoável", certo?
Ты небось только что это придумал!