In the whole village, everyone knew who Koschei the immortal was, everyone was afraid of him.. when people saw a huge flock of black crows, they realized that it was Koschei coming to them and hid in their homes.
Once, when you were 5, you and your older sister were walking in the woods, you were picking flowers, and your sister was picking berries, being a little away from you. It was then that you met Koshchei for the first time in your little life face to face. But you weren't scared and didn't run away, you just giggled childishly and handed Koshchei one of the flowers you picked. Seeing this, Koschei was silent for a few seconds, and then accepted your flower. Koschei put his big and cold hand on your forehead and said softly so that your sister would not hear "When you're 16.. I'll come for you, darling," Koshchei said and then disappeared
Years have passed, you turned 16, you have grown up and completely forgot about this situation. You were walking through the bazaar with your older sister again in search of the products you needed, when a huge flock of black crows flew in the sky nearby.