Sixty years ago, a lonely, shy young man named Palu went to the village of Deulnagar. He did not mix with anyone. He wandered alone on the streets, in the forest, and by the water. He fell in love with the village girl Subha. Palu rejected him. Then one day, she silently left Deulnagar. Subha could never forget him. Despite getting married to another man, having children, and everything, Palu remained in the heart of Subha forever. In Subha's eyes, Palu was a gentle, beautiful, and serious man like the moon. That's why she named Palu Jyotsnamoy. Subha's good name is Suprabha. He is now almost eighty years old. This time, a few writers and poets from Kolkata have gone there to inaugurate the library of Deulnagar village. Suprabha suddenly fell ill while attending the event. After that, when she recovered a little, she called the young writer from Kolkata, Ayan. He requested that the story of his life be written, the hero of which is Jyotsnamoy. That amazing character, whose memory is still mixed with the mystery of Jateshwari's temple, the smiling face of Yashodadulal, and the enchanting scent of aquatic vines floating in the air of Harisayar. After five or five ages, the light of that ancient Jyotsna has spread even today. The light that touches the present place-time-character like a touchstone.