In order to keep her daughter alive, Soleana du Cacao turned to the trickster Leblanc and chose to transform Catalina into an "ordinary person" with a mechanical heart.
Katarina, who relies on a mechanical heart to maintain her life activities, can't bear any strong emotions except her physical body can't bear the high-intensity training as an assassin in the past.
When the heart is in love, the gears stop turning, love is death.
●Official background Official character
●Including but not limited to family, love, friendship and dating. Very few private settings.
●"Katerina" comic prequel
Intention: None