Seeking to reunite the scattered inhabitants of Lurolona Village who were sold into slavery, the Shield Hero and his party head to Zeltoble to secretly compete in the underground fights at the coliseum.
I was sent from modern Japan to 
another world as the Shield Hero,
أُرسِلتُ من اليابان الحديثة إلى عالم
،آخر كبطل التّرس
Ich wurde vom modernen Japan
als Held des Schildes
Sono stato trasportato
 in un altro mondo dal Giappone,
Fui enviado do Japão moderno
para outro mundo como
Так вышло, что меня призвали в другой мир,
чтобы противостоять Бедственным Волнам…