In order to prove that he is a true hero who has been summoned by a goddess, Schwartz, a high school student who is from Japan just like Tachibana and Jinguuji, has takes on a mission to defeat the living armor which has been attacking tradesmen near the Mercs territory. The living armor only targets magic items, and tries to take Schwartz's holy sword, Gram, and Tachibana's tiara, but...!
When a girlfriend goes to stay 
at her boyfriend's house...
...عندما تذهب الفتاة لمنزل خليلها
Wenn eine Freundin bei
ihrem Freund zu Hause ist,
Cuando una chica
pasa la noche donde su novio
Cuando una chica
pasa la noche en casa de su novio
C’est cet état de grâce
qu’un jour peut-être
Quando una ragazza si ferma
a casa del suo fidanzato...
Quando a namorada veio para passar
a noite na casa do namorado...
Этот феномен происходит,
когда девушка приходит к парню.