From an Unknown World: The Witch's Well

On his way home from school, a boy met a girl in an underground passage. A sign in front of her read, "I'm so hungry." Was she just a beggar trying to con him? But when the boy offered her money, she refused. All she really wanted was food?

It was like a fateful encounter, though he had no idea that from that moment on, the wheel of destiny had begun to turn. There was no escaping it. They would be swept into a conspiracy and conflict spanning an endless cycle of reincarnation.

And even the ultimate secrets of life and the world.

"Do you regret it?" someone asked him.

Half-kneeling on the ground, the boy spat out a mouthful of blood and smiled. "How... how could I ever regret it? The only thing I regret is not meeting her sooner."