The Fallen Yandere Hero Was Entrusted to a Slime: I Died Protecting My Childhood Friend, the Heroine, Reincarnated as a Slime, and When We Reunited, All My Former Companions Had Gone Yandere

I Still Haven’t Noticed Everyone’s Hearts Darkening as I Keep Using Self-Destruction Tactics as a Slime!

He was known as the Hero’s childhood friend. With that title, the boy spread his wings across the world and earned fame rivaling even the Hero who stood beside him. In the end, he died protecting his companions. He entrusted humanity’s future to them. Or at least, that was how it was supposed to be.

When I opened my eyes, I had been reincarnated as a slime, the weakest of all monsters. And to make matters worse, the one who picked me up was the Heroine I had died protecting. For a brief moment, I wanted to rejoice at our reunion. But the female Hero who lifted me up was nothing like the cheerful girl I remembered.

She never smiled. Her eyes were hollow. She had completely lost the bearing of a Hero. She no longer had the will to fight the Demon Lord and had stopped fighting as a Hero altogether.

Entrusted to a single slime was the task of caring for the mentally broken Heroine who had fallen into darkness. For the sake of humanity, I, a mere slime, had to help her become a Hero capable of fighting once again. I still couldn’t even speak. First, I needed to learn how to talk.

And so, the slime carrying humanity’s fate on his shoulders continued to struggle forward day after day.

There was still something I didn’t know. The Hero wasn’t the only one who had fallen into darkness. Every one of my companions had sunk their hearts into the shadows and lost the will to fight.