Varayo Vennilaave..! / வாராயோ வெண்ணிலாவே..!

Who is the real hero in the story? This is the main question of the story starting.
Rishi who lost his parents at a young age in a tsunami wave. After that, he grew up in the care of his grandparents and had no friends. On the first day of his College, he met many different people, and some of them deeply contact his life.
Ram, naughty person. He does not know the number of women he fell in love with.
Arjun is the mixed character of Rishi and Ram. He is willing to give his life for his childhood frend and that friend is a girl.
Which of them is the real protagonist? Who is the real heroine?
Going up to the dance competition, the song competition and still the story travels with many mysterious questions in the introduction of some of the character. Whole life changes when they met same look a like persons: Vikram, Aadi, Sathya and Vishnu dev.
Who are they? What connections have with them?