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--
My father taught me medical 
and assassination techniques
علّمني أبي تقنيات الطبّ والاغتيال
Mein Vater lehrte mich Heilpraktiken
und Attentatstechniken,
Mi padre me enseñó técnicas médicas
y de asesinato
Mi padre me enseñó
técnicas médicas y de asesinato
Mon père m’enseigne les techniques
de médecine et d’assassinat
Mio padre mi ha insegnato
 sia le arti mediche che quelle dell'assassinio,
Meu pai me ensinou técnicas
médicas e de assassinato
Отец учит меня медицине
и приёмам убийства,