Uthaman Pradeep is the 24-year-old chief developer of Qinnaihua Travel. He lives with his mother and sister Divya, who is engaged to a dentist named Yogi for 8 months and will get married in 4 days. Pradeep has a relationship with his colleague Nikhita, whose father, Venu Sastri, is a very strict person. Pradeep went to her house to meet Venu and convinced them to get married in the future. Vinu seems to be an orthodox man. He played with Pradip for a while and came up with a strange agreement: Pradip and Nikita must immediately exchange their mobile devices for a day, as well as the unlock keys for their respective phones. After the end of their menstrual period, if they still feel like they are in love, Venu will not oppose their union. Otherwise, they can go their separate ways. Pradeep and Nikitha both agreed half heartedly, and Pradeep went home to manage his sister's wedding. Due to some leaks, Pradeep went to Venu's house the next day and extended the communication until his sister's wedding ended. Venu agreed. Pradip also encountered trouble because Vinu found a way to bring back all the information that Pradip had deleted from his phone, as Pradip would clean up his chat records every week. Meanwhile, Divya and Yogi seem to get along very well because Yogi is a cultured and gentle person who treats Divya equally. One day, during a terrible group call with Devia, Yogi accidentally overheard Devia's mother and aunt insulting his physical features when Devia was not around. At the current wedding ceremony, he has become unpredictable and does not allow anyone to use his phone. This has raised many questions for Devia and her friends. They repeatedly tried to get his phone and open it to view the content, but were blocked by Yogi. The rest of the story is about what happened to this couple, did they maintain unity?