Coimbatore-based Aadhi and Jeeva have been close friends since childhood. Aadhi's father, Professor Ramachandran is very supportive of his interest in music and extra-curriculars. Aadhi joins electrical engineering after school and falls in love with his college mate, Nila who was his childhood friend. Nila is from an affluent family, and her parents are against love. Despite Nila's reservations, she too falls in love with Aadhi.

Aadhi is well known in college for his Tamil raps, and he owns a YouTube page "Hiphop Tamizha". Weeks before their final exams, Nila's family discover her relationship with Aadhi. Nila's father and uncle threaten Aadhi's family to break this relationship. After graduating, Aadhi expresses his interest to move to Chennai and become an independent musician, to his father; for which he also faces opposition. Aadhi convinces his father, promising that he will return within a year if he cannot succeed. Aadhi also promises Nila that he will seek a job after one year and marry her. Both Nila's and Aadhi's fathers accept his promises with half-heart, and Aadhi's father does not provide financial support to him.

Aadhi and Jeeva reach Chennai with instruments. They stay with their college seniors and try hard for opportunities, but all efforts fail. A year passes by, and the duo decide to return to Coimbatore. Before departure, Aadhi and Jeeva meet Ma Ka Pa Anand of Radio Mirchi, who allows him to sing "Club Le Mabbu Le" in his show, following which they come to Coimbatore.

As per his father's advice, Aadhi enrolls for an MBA degree in Chennai. Suddenly, he finds that the video of "Club Le Mabbu Le" has gone heavily viral in social media, and has drawn thousands of fan followers. Aadhi's hope is revived, and he decides to continue looking for an opportunity in the music industry and also promises his father that he will complete his post-graduation. At the same time, a big music company approaches Aadhi for a paid concert in Chennai.

Since Nila has not consented to any marriage proposals, Nila's father threatens her with his suicide and arranges a wedding for her. Aadhi gets shocked knowing that Nila's parents have fixed a wedding for her. Aadhi covertly meets Nila and requests to wait for another year, for which Nila does not agree, replying that she had already waited for a year, and all is over. Aadhi gets heartbroken and leaves to Chennai. Nila is married as per her parents' wishes, while Aadhi becomes a popular personality in hip-hop music and in five years Aadhi and Jeeva become famous music directors in cinema.