Sumi's story starts from a small house in the city. Sumi is a struggling mother whose life has never been easy. After the untimely death of her husband, she faces the harsh reality of her only son Rakib. In the rush of life, Sumi is eventually forced to choose a profession that is reprehensible in the eyes of society - she becomes a professional sex worker.

Rakib was only a seven-year-old child. Sumi knows that her actions have made her undesirable in society's eyes, but she chose this life for Rakib. He does not want his son to grow up in poverty. Her love of motherhood has forced her to walk this difficult path.

Sumi returns from work every night, but never lets herself get tired or broken in front of Rakib. She cooks for Rakib every day, helps him with his school homework and tells him stories at night. Rakib knows how much his mother loves him.

But as Rakib grew up, he started listening to his surroundings. School friends make fun of him, neighborhood people point fingers at him. But Sumi always convinces him that man should not be judged by his deeds, but by the rightness of his mind and actions.

One day Rakib came back from school and started crying to his mother. He wants to know why everyone makes fun of him, why everyone talks about his mother's profession. Sumi can't hold back the tears. He pulled Rakib to his chest and said, "Dad, I do everything for you. You are the most valuable asset in my life. What I do, I do for your good. Your education, your future is most important to me."

Rakib looks at his mother'sface and realizes that his mother really loves him. He now understands the sacrifices his mother is making. Rakib vows that he will never disappoint his mother.

Sumi continues her work, but when Rakib falls asleep at night, she cries quietly. He knows that this path of his life is making him small in the eyes of the society, but he cannot turn away from this path for the sake of his child's future. His love and sacrifice made him live this difficult life.

Years go by. Rakib grows up, and begins to understand the meaning of his mother's struggle. He concentrates on his studies, growing in love and respect for his mother. He knows that this pain of his mother will bring him success one day. Rakib vows that he will one day repay his mother for this sacrifice.

One day Rakib gets excellent result in higher secondary examination. Sumi cried with joy. The fruits of his sacrifice have begun to bear fruit. Rakib gets admitted to university, and a new chapter begins in his life.

Years later, Rakib returns as a successful doctor. He identifies his mother as the biggest hero in his life. There were tears of joy in Sumi's eyes. May his sacrifice, his love be worthwhile.

Rakib brings his mother to a new home. Sumi is no longer in the profession. His son keeps him with financial security and respect. Sumi is now only Rakib's mother, her identity in society's eyes becomes only mother.

Thus, Sumi proves that a mother's love never ends. No matter what society says, true love always wins. The story of Sumi and Rakib is not just a love story, but a storyof sacrifice, struggle and true love.

Although Sumi is a sex worker in the eyes of society in this story, her spirit and love of heart prove her to be a great mother. Her sacrifice and love has been the beacon of light in Rakib's life and made their relationship unbeatable.