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!
That was the form he took after Marquis 
Xeanos Zeford became a monster.
كانت تلك الهيئة التي اتّخذها بعدما
أصبح المركيز زيانوس زيفورد وحشاً
Er ist der Marquis Zeanos Zefored,
der zu einem Monster wurde.
Era la forma monstruosa
del marqués Zeanos Zeford.
Era la forma monstruosa
del marqués Zeanos Zeford.
C’est la forme de monstre
que prit le marquis Zeanos Zefford.
Quella era la forma assunta dal marchese
Xeanos Zeford dopo essere diventato un mostro.
Essa foi a forma que ele assumiu após o
Marquês Xeanos Zeford se tornar um monstro.
То чудовище — форма маркиза 
Зеаноса Зефорда после превращения.