While friendship seems to blossom between Guna and Malar, Kalai's first meeting with Abi's family goes wrong. Meanwhile, Sakthivel receives an offer from his rival.
Abi reveals the truth behind the theft and proves Kalai's innocence. However, he faces a tough time as Gowtham's friends humiliate him at his workplace.
Sakthivel gets overjoyed as his former student Jerry returns to Siragugal as a teacher. On her way to school, Abi panics being followed by a certain someone.
Jerry wins the hearts of students with his unique teaching style on his first day. He also makes an attempt to reunite students for the upcoming school function.
Malar feels heartbroken as the information on Siragugal's ex-students gets erased. Nandhini goes into shock when she finds her mother in an unconscious state.
Jerry comes up with an idea to bring the ex-students together and shares it with Malar. Elsewhere, Aadhi troubles Abi and forces her to accept his love letter.
As Aadhi threatens to hurt himself, Abi reluctantly accepts his love proposal. Sagayam steps in to help Gowtham, and his friends contact Ashok, a popular celebrity.
Naachiyappan visits Guna with a compelling offer in order to persuade his father to hand over Siragugal school to the former. Sagayam and students make an attempt to meet Ashok.
Abi gets heartbroken when Aadhi threatens to share her photographs on social media. At school, Jerry employs his methods to encourage cooperation between Kalai and Gowtham's teams.
The principal provokes the students' parents to give complaints about the school and management to Sakthivel. Kalai gets worried about Abi and pays her a visit.
After learning the truth, Sakthivel counsels Kalai and urges him not to repeat the mistake. Gowtham's friends get suspicious when Sagayam claims to have received a call from Ashok.
As the warden condemns Kalai for his misbehaviour, he promises to control his anger. Shocked by the viral response to Ashok's post, Gowtham rushes over to inform Jerry about it.
On seeing Sakthivel happy, Malar decides to hide the second warning letter from him. Kalai gets into a pickle when a vendor backs out of the function at the last moment.
Happiness knows no bounds for the people of Siragugal as the alumni attend the silver jubilee event. While Guna and Bullet spy on the guests, a special someone interrupts them.
Sakthivel appreciates the students for making a grand and nostalgic arrangement for the event. Meanwhile, Malar and Gowtham begin to panic as they are unable to contact Ashok.
Nandhini gets nervous when she sees the audience but gains confidence after recalling Gowtham's remarks. Ashok, the rockstar, arrives at the event and shares his school memories.
Although Sagayam assumes rockstar Ashok has forgotten about him, he gets a pleasant surprise. The next day, a DPI officer meets Sakthivel to seal the school's fate.
The students' parents visit Sakthivel to demand answers about the school's current situation. Meanwhile, Aadhi's brother, Vedha, goes to Kalai's hotel with sinister intentions.
A misunderstanding forces Sakthivel to chase Guna out of his house. Elsewhere, Kalai lashes out at Abi when she asks him to accompany her to the police station.
Sakthivel is taken aback when he learns that Raghu has applied for a huge loan. While the students mock Attai Poochi, the peon enters the classroom with the fee defaulters' list.
Kalai and the others arrive at the hospital to meet Sakthivel. To everyone's surprise, Sakthivel makes a shocking announcement regarding his successor.
Guna's decision regarding Siragugal's next correspondent baffles Jerry and Malar. Elsewhere, Gowtham suggests a solution for Nandini's scholarship issue.
Nandini makes a vain attempt to discuss her school fees with her mother. On the other hand, Raghu and his co-conspirator meet with intentions to close down Siragugal.
Nandini's mother punishes Nandini for her cowardly act to end her life. Later, Jerry plans to hold a parent-teacher meeting for the welfare of the students.
Parents rush to Siragugal school to attend a meeting with the teachers. On seeing his friends and their family, Gowtham begins to yearn for the love of his parents.
Guna steps into Sakthivel's office as Siragugal's new correspondent. Elsewhere, Shwetha gives a piece of advice to Nandini for the latter's well-being.
After learning about the financial situation of Nandini's family, Haritha and Gowtham decide to help her. At school, Attai Poochi resolves to become smarter than Jerry.
Raghu keeps tabs on Guna's activities at school through the principal. Meanwhile, Selvam gets persuaded to hire Nandini's mother for the school canteen.
