Brother of the Year (2018)

Both movies are similar and not so similar in some ways. The elder brother is irresponsible and lazy while the younger sister is responsible and excels in everything. The brother just finds ways to frustrate her, and things go overboard when he interferes in her love life.

Both are underrated romance movies.

Both movie tells the story of an older brother and a younger sister who is not fond of each other. The sisters' hate are more obvious. The brothers' are milder. :P a bully/playful brother and a strong sister.