The world's finest Assassin accepts the Goddess' request to assassinate the Hero. After defeating the Demon Lord and saving the world, the Hero will then use his power to destroy the world. The Goddess wants the Assassin to be reincarnated in another world and assassinate the Hero in order to save it. After being betrayed and killed by his client in his previous life, the Assassin accepts her offer in order to relive his life in a new world, but--
there are also the rare attributes of 
Light and Dark for a total of six.
توجد سمتا النور والليل النادرتين، فيكون المجموع ستّاً
gibt es auch die seltenen Elemente
Licht und Finsternis.
existen los elementos raros
de la luz y la oscuridad.
existen los elementos raros
de luz y oscuridad. Son seis en total.
il en existe deux rares, lumière
et ténèbres, pour un total de six.
ce ne sono anche due più rari,
luce e tenebre, per un totale di sei.
também existem os raros atributos
de Luz e Escuridão, no total de seis.
существуют редкие стихии: света и тьмы.