That Whistling by Youth (2017)

The movie "Only the Wind Knows" is a Chinese remake of the web TV series. Both have the same native name and both are adapted from the novel of the same name.

Both series are about crossdressing girls who get into schools (although it's in different eras). Seeing the romantic scenes between the crossdressing girl from ''That Whistling by Youth'' and a real guy that attends the same school really reminded me of the relationship between the main characters of ''Sunkyunkwan Scandal''. Both series have main characters that are plotting to find out certain secrets and both conceal their identity as a girl.