zefuri's manga / #Monsters(1)

I'm telling this from my memory when I first read it. So basically, to activate their powers or something like that They had to kiss in order to defeat the enemy or monsters or some shit like that. The female lead and the black haired boy used to be comrades like leader and assistant something like that, and then the female lead died and then revived as a human. And so the stories start. This is actually good AND I LOVE IT