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.
I will prove to that blasted goddess 
that our friendship is immutable!
!سأثبت لتلك الإلاهة المعتوهة أنّ صداقتنا ثابتة
Zeigen wir dieser bescheuerten Göttin,
dass unsere Freundschaft ewig hält!
¡Le demostraré a esa diosa
que nuestra amistad es inquebrantable!
¡Le demostraré a esa diosa
que nuestra amistad es inquebrantable!
Je montrerai à cette fichue déesse
que notre amitié est indestructible !
Proverò a quella dannata dea
che la nostra amicizia è immutabile!
Vou provar para aquela deusa
maldita que nossa amizade é eterna!
Я докажу этой мерзкой богине,
что нашу дружбу ни что не разрушит!