Hello, My Twenties

Eunjae, believing university would solve everything, finds her new life in Seoul overwhelming and unfamiliar upon arrival. Her housemates at Belle Epoque are unexpectedly distant, contrasting with her imagined vibrant twenties. Despite dreaming of an exciting life, Eunjae faces the harsh reality of adapting to Seoul's fast-paced environment.

Ye-eun faces a dilemma at Belle Epoque, where male visitors, including male friends, are forbidden, yet she discovers men's trunk underwear there. Feeling uneasy, she hides the discovery while also preparing for her 2-year anniversary with boyfriend Doo-young and planning a celebratory trip to Chuncheon amidst the turmoil.

Ina is exposed without her disguise, causing a panic among the house mates. Meanwhile, Ye-eun asserts that she cannot share a home with a sex worker. Meanwhile, Ina heads directly to her usual workplace, where she meets the strange man Jong-kyu...

After the scandal, Ina declares independence, and the four house mates of Belle Epoque search for a new housemate. Amid their quest for someone seemingly ordinary yet intriguing, a tipsy Ina unexpectedly enters Belle Epoque. Meanwhile, Jaewan makes bold advances towards Jinmyung...

Ina and Jiwon organize a night to lift the spirits of their house mates, worn out from unrequited love and monotony. As they prepare for the 'Men's Night' at Belle Epoque, each invites a male guest. But just as the party kicks off, an unknown man unexpectedly arrives at Belle Epoque!

Jiwon stresses the need to boost their spirits to banish the shoe rack ghost, sparking excitement at Belle Epoque for the 'Men's Night' event.

Eunjae got a love confess from her senior colleague Jongyeol, grappling with the incredulity of their newfound relationship somewhere between a crush and something more undefined. Meanwhile, Jinmyung navigates an awkward situation with her superior, unexpectedly feeling a longing for Jaewan more than ever.

Life cannot be sustained on hope alone. Jinmyung has clung to the belief, akin to a religious creed, that things will improve 'someday, later, once I get a job', yet persistent challenges keep testing her. Meanwhile, Ye-eun begins to doubt the relationship between her boyfriend Doo-young and Ina, leading her to ultimately decide to break up with him...

A mysterious man shows up looking for Eunjae, questioning about her family, leaving Eunjae stunned. Meanwhile, the restaurant manager's misdeeds reach a breaking point, pushing Jinmyung to finally explode…

Jinmyung, acting differently than usual, asks Jaewan out on a date, leading to an enjoyable time together. Meanwhile, Ye-eun coldly rejects Doo-young when he visits. At the same time, after hearing Grandma that Jinmyung has vanished, the house mates search for him, even visiting his brother Soomyung at the hospital!

Ye-eun has disappeared! The house mates, armed with their brilliant deductive skills, set out to rescue kidnapped Ye-eun. Meanwhile, Jiwon, who has discovered Eunjae's secret, is shocked by Eunjae's true identity…

This time, it's Eunjae! The house mates search desperately for the missing Eunjae. Eunjae, grappling with her thoughts alone, feels her heart tearing apart. Meanwhile, one of the five mates declares she will move out of the house.