A Friend in the Sun

Chen An An, a high school student who moved with her mother to a broken alley, is mistaken by her new classmates as a rich girl and becomes very popular in her class. Lin Fan, a neighbour with a minor intellectual disability, discovers An An's secret, and the two bond by painting together on an abandoned rooftop. However, Li Sha, the real rich girl, soon learns An An's real identity and hatches a plan to expose her.
(Source: read01.com)