Disappearing Love

The introverted girl Fang Xiao Ying has been easily overlooked since she was a child. One day, she finds herself forgotten by everyone and becomes a completely transparent person. In a state of despair, she accidentally discovers that only Yu Zhiang, with whom she'd had a misunderstanding, can see her. The two strike a deal, and Yu Zhiang helps Fang Xiao Ying with a promise so she can find herself again.
(Source: Chinese = Baidu || Translation = MDL)