– With the single’s success, Arun receives an offer to work as a composer for a budding indie film. He must decide whether to accept a secure corporate job or follow his artistic calling. He chooses the latter, embracing the risk.

– Misunderstandings, distance, and mounting stress culminate in a painful breakup. Arun, heartbroken, retreats into his music, channeling his emotions into a poignant composition that becomes his first independent single. The song goes viral among his peers, earning him unexpected recognition.

Arun falls deeply in love with his classmate, Darshana (Darshana Rajendran). Their relationship, filled with the "crazy" enthusiasm of youth, eventually hits rocky ground due to immaturity and the typical pitfalls of campus romance.

– At a mutual friend’s wedding, Arun and Riya cross paths after several months. Their reunion is tentative but warm; they share stories of their journeys, acknowledging how each has grown individually. A duet they perform together—blending Arun’s composition with Riya’s voice— becomes the wedding’s highlight, symbolizing their renewed bond.

– In Mumbai, Riya’s audition leads to a contract, and she quickly rises as a playback singer. Despite her fame, she feels an emptiness, realizing that personal connections have been sidelined.

After their breakup, Arun struggles to find his footing, dealing with mistakes and "misspent youth". However, his journey in Chennai ultimately shapes him as he experiences both the "bittersweet" nature of nostalgia and the "hard knocks" of reality.