I believe this is about a Japanese toddler that wants to oof herself because her mom is dying because she doesn't know what to do.....the star is supposed to be her......
How I know her mom is dying? the lyrics say "Kimiwa shinukedo watashiwa shinana, hyaku nengo mamiwo utaundarou, Kimiwa shinukedo watashiwa shinana, owariga aruto ikoto" which means "You will die, but I will not die; a hundred years from now, I will still be singing about you. You will die, but I will not die; it's good that there is an end." it is sad that this is from a toddler or a child....its usually a teen or an adult that sings like this......