The blue sky was lost, and a desolate season ushered in. The happiness in my heart is far away from me. Will I lose it forever? A sad world, a desolate and sad sky, a still sad heart, a melancholy angel, a blue sky, leave without hesitation... Falling in love with someone is an eternal thing, even if we are strangers. In this life, if you are well, it will be sunny... If there is no me in your world, then my world will definitely be without you...