Es vergonzoso que hayas copiado y pegado un vídeo y simplemente hayas cambiado a las personas. Al menos puedes especificar que te inspiró. Para mí no mereces ser un RU-vidr, lo siento.
Virtually, the part where the younger sister is singing suddenly appears that the older sister has been stabbed with a knife and is still singing, but it turns out that the older sister is not dead yet but attracts the younger sister, then takes the older sister home and then sings, so the older sister sings this. The middle part is sung naturally all the time showing what kind of sister she is