After Seiichi defeats a gorilla-like monster, a Kaiser Kong, she proposes to him. The gorilla named Saria starts her new life together with Seiichi. While she is kind, innocent, and forthright, he still plans his escape from her since she’s a gorilla. 

After wandering into a cavern he finds a skull putting off a strange aura - the dark lord Xeanos. Seiichi begins to battle Xeanos, a creature as strong as most final bosses! However, disaster befalls Seiichi and Saria leaps in before him!
I hereby order you Heroes: go defeat 
the Demon Lord threatening our world.
آمركم أيّها الأبطال: اذهبوا لهزيمة ملك
!الشياطين الذي يهدّد عالمنا
Ich habe einen Befehl für euch Helden.
Héroes, les ordeno a todos
Héroes, os ordeno a todos
J’ordonne à tous les héros
Eroi, vi ordino di andare a sconfiggere
il Re demone che minaccia questo mondo!
Eu ordeno, Grandes Heróis, vão e derrotem
o Lorde Demônio que ameaça nosso mundo!
Засим повелеваю вам, герои: победите 
угрозу нашему миру — Владыку демонов!