Ji Xia's summer is always so memorable. He was born in summer and fell in summer. He was once optimistic and cheerful, but now he is one of the stars that is about to fall. In Ji Xia's eyes, Mo Shan is a moon that can illuminate the sky, but it contrasts with his own bleakness. In the summer of 17 years old, Ji Xia made a wish to have a moon of his own. Will that person be Mo Shan?