Tamil cinema has often portrayed the transgender community through sin or sexualization, rarely addressing the deeper struggles they face. Blue Sun, directed by Samyukta Vijayan, offers a refreshing and rare perspective on this issue. The film tells the story of Arvind, a teacher in Coimbatore, who has felt like a woman since childhood. With the support of a friend and guidance from doctors, Arvind secretly takes hormonal drugs. As she prepares for gender reassignment surgery, she reveals the truth to her family and school. The film explores the emotional and societal challenges she faces on this transformative journey.