Aslı, Yaprak, and Fatoş decide to throw a henna night for their friend Elif, who is about to get married. When Volkan finds out that Selin is also invited to the party, he disguises himself as a woman and crashes the event in dramatic fashion! However, things take a turn for the worse when Şesu also shows up at the henna night, leading to chaos. Meanwhile, Aslı becomes intensely jealous upon hearing that Fatoş and Cem are going out to dinner, and the entire office begins to spy on them like detectives. As Aslı and Volkan are about to move into their new apartment next door, their relatives from Germany—Uncle İmdat, Aunt Azamet, and their son Adnan—arrive for a short stay. However, these strange and dangerous relatives have ulterior motives. Aslı and Volkan’s lives are about to be changed in ways they never imagined!

Volkan decides to enter a singing competition, but this must be kept secret from their father. Meanwhile, fed up with Aslı's lack of interest, Tacettin decides not to introduce Volkan to his producer relative. In response, Volkan creates a fake diary, pretending it belongs to Aslı, and fills it with pages expressing her secret love for Tacettin. After reading it, Tacettin becomes ecstatic and starts acting more "affectionately" towards Aslı, who is, of course, still fixated on Cem. Realizing she knows almost nothing about him, Aslı attempts to fill the gap by conducting a fake interview with Cem. Elsewhere, Fatoş begins dating a younger rock musician, but their schedules are completely mismatched. Sertaç advises Volkan that to succeed in the competition, he needs a tragic and interesting backstory. Volkan embraces the idea, adopting the persona of "Acılı Ayhan" and makes a big impression!

After Sertaç's brilliant idea, Volkan decides to get into the bootlegging business. The fact that a famous director plans to hold the premiere of his new movie at Aslı's house plays right into Volkan's hands. However, Volkan completely overlooks the "pirate mafia" factor. When he and Sertaç fall into the mafia’s hands and are forced to work for them, chaos ensues. Meanwhile, Aunt Azamet decides to give belly dancing lessons at home and convinces Mrs. İffet to join her. But the students who show up are not what they expected, and things quickly spiral out of control in this secret operation hidden from the father and Uncle İmdat. At the same time, Aslı begins to get to know Cem better and realizes they may not be as compatible as she originally thought.

Volkan discovers that famous record producer Celal Ağabey only signs singers who have performed live. With Sertaç's help, Volkan secures a gig at an exclusive high-society event. Meanwhile, Cem tells Aslı that she is too strict and boring, prompting her to prove him wrong by attending a late-night party where Cem will also be present. However, getting permission from her parents seems impossible. Volkan agrees to cover for her, but only on the condition that Aslı organizes a romantic dinner for him and Selin. When their parents unexpectedly show up at the dinner, chaos erupts. Elsewhere, Şesu pretends to be the magazine's fashion writer and starts dating fashion designer Müge. But his fake identity causes problems, and it turns out Müge has been lying about herself too. Volkan’s concert at the high-society event doesn’t go as planned, and when Selin and her friends show up, chaos ensues in Avrupa Yakası!

Tahsin Bey and İffet Hanım visit a doctor and decide to adopt a healthier lifestyle. They quit red meat and sweets, start exercising, and join an anti-aging program. Meanwhile, İffet invites the doctor, whom she thinks would be a good match for Aslı, to dinner. However, both this dinner and their new diet don’t go as well as expected for their health! Aslı, concerned about Volkan's deepening depression, finds him a psychologist. While Volkan starts feeling better after the sessions, there's something oddly off about the psychologist. Finally, Aslı decides to ask Cem out. Although her first attempts don’t go smoothly, she eventually succeeds. But…

Aslı discovers that Volkan's psychologist, Saadet, is actually an insane woman named Nadide! Unaware of this, Volkan spent the night with Nadide, and things take a strange turn when their parents unexpectedly arrive. Nadide introduces herself to them as Volkan's girlfriend and secretly plans to kill Aslı, whom she believes is conspiring with "hidden forces." When Yaprak also shows up at the house, things spiral out of control, and it becomes clear that this won’t be the last chaotic day with Nadide. Meanwhile, at the office, Selin's father, fed up with her laziness, removes her from her position as news director and cuts off her allowance. Selin is forced to do menial tasks alongside Şesu. Cem's girlfriend visits the office and makes an effort to befriend everyone, especially Aslı. But as always, Aslı, who despises any woman getting close to Cem, is in for a surprise!

Volkan tries to play the "soft guy" in an effort to finally sign a record deal with Celal Ağabey. Despite several close calls where their schemes almost get exposed, the contract is still not signed. Volkan and Sertaç then find themselves forced to attend a party thrown by Celal Ağabey’s friends. Meanwhile, Selin and Yaprak are constantly fighting over Volkan. At the office, Cem's girlfriend mentions flowers being sent to a woman. Aslı becomes suspicious of all the women in the office, only to eventually find the flower in her own drawer. But things aren’t as simple as they seem, and more surprises await! Meanwhile, İffet Hanım has lunch with the magazine’s girls by chance, and her worldview shifts. She starts experiencing all the relationship problems that urban women face and makes sure Tahsin Bey experiences them too!

Volkan decides to become a commercial star for fame and money, landing a role as a chocolate-coated candy in a chocolate ad. Coincidentally, Aslı also gets a role as an extra in the same commercial. When the two meet on set, chaos erupts. Meanwhile, after a fight with his mother, Tacettin shows up at Aslı's house with his luggage, moving in temporarily. When Selin does the same, the house turns into a madhouse, leading to a night full of confusion and traffic. At the same time, Cem realizes he has feelings for Aslı, but everyone in the office tries to convince him to drop his intentions in order to protect Aslı.

Tacettin and his family plan to visit Aslı's house to formally ask for her hand in marriage. While Aslı’s father initially intends to refuse, Tacettin’s surprising visit changes both parents' minds—unbeknownst to Aslı. After reconciling with her father, Selin returns to her old life and ex-boyfriend, leaving Volkan to pursue a "serious relationship" with Yaprak. However, to meet Yaprak's expectations, Volkan needs to modernize and become a true metropolitan man. Şesu and Aslı begin teaching him how to behave, speak, and dance, transforming Volkan into a "clubber." Meanwhile, believing Aslı is engaged to Tacettin, Cem tries to suppress his feelings for her, while Aslı plans to confront Cem and confess her true emotions. When Volkan, Yaprak, Cem, and Aslı all meet at the same restaurant with Volkan in his new "clubber" persona, chaos erupts!

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