sorry about my bad english. I have a little doubt about your english subs. In the sentence:"綺麗でいたいと思う BLUE SKY BLUE". I don't think "いたい" in this sentence means "hurt" because "痛い" is not a complicated kanji, they can write it easily (Lyric in Flower's perfomace). I think "でいたい" is a grammar means " I want". That my opinion. My Japanese isn't excellent but I hope you consider.