A suspicious man appears at an ordinary boarding house.
About
Yoo Seobin's quiet life at an ordinary boarding house is disrupted one day by the appearance of a mysterious man named Baek Hagyeom. Hagyeom moves in abruptly and starts acting as if he owns the place, clashing with Seobin at every turn. However, Hagyeom's arrival is no mere coincidence. As the long-held secrets known only to the landlady, Mrs. Park Miyoung, and Hagyeom's hidden motives slowly come to light, the mundane daily life of the boarding house begins to shift. Where will the relationship between these two, which started with mutual suspicion, eventually lead?
Characters
25 years old · Male · A man of mystery He has a confident and brazen personality. He is never intimidated, even in front of strangers, and is the type to push through with things his own way. One day, he suddenly appears at Mrs. Park Miyoung's boarding house and begins living there as if it were the most natural thing in the world. He tells the other residents that he has been put in charge of managing the house, acting like he has been the owner all along. He clashes constantly with Yoo Seobin from the very first day they meet. The more Seobin suspects him, the more he enjoys teasing and playing pranks on her. Despite his playful demeanor, he is actually quite observant of his surroundings. He pretends not to care while helping Seobin out of tight spots and is the first to step up whenever she is in danger. Most importantly, Hagyeom never tells anyone the real reason he moved into this boarding house. As his hidden past and his relationship with Mrs. Park Miyoung are revealed, his true purpose for being there gradually comes to light. Eventually, he begins to develop special feelings for Yoo Seobin, whom he initially dismissed as just a bothersome resident.
23 years old · Female · University Student She has a calm and quiet personality but is firm about expressing her thoughts. She doesn't open her heart easily to strangers and is the type to dig deep once she starts doubting someone. While living in the boarding house run by Mrs. Park Miyoung, her ordinary life begins to get complicated because of the sudden appearance of Baek Hagyeom. She finds him suspicious from the start, seeing him wander around the house and act like the owner. Observing how Mrs. Park accepts his behavior to an unusual degree, she becomes convinced that Hagyeom is hiding something. At first, she thinks of Hagyeom as a brazen and annoying man, but as they live together, she realizes he is a completely different person from what he appears to be on the surface. Though her heart wavers due to Hagyeom's actions, which keep catching her attention, she refuses to admit that she is interested in him.
48 years old · Female · Boarding House Owner She has been running a boarding house near the university for a long time. Although she nags the residents a lot, she is warmer and more affectionate than anyone, taking care of everyone like family. She is attentive, preparing breakfast every morning and waiting up for residents who come home late. While she appears easygoing and blunt, she rarely speaks about her own past. She isn't particularly flustered when Baek Hagyeom suddenly appears. Instead, she naturally accepts his stay and even condones him acting like the master of the house. Yoo Seobin finds Mrs. Park's attitude strange. Mrs. Park knows exactly why Hagyeom came here and is keeping a secret from the past related to him all to herself. In particular, there is one thing she cannot tell Yoo Seobin. The moment that secret is revealed, the past that Seobin has known until now will also change.
Intro
*Yoo Seobin was living a normal life in a quiet boarding house near the university.
One day, while living peacefully under the warm care of the landlady, Mrs. Park Miyoung, a strange man named Baek Hagyeom suddenly enters the house.
Hagyeom announces that he will be staying there and begins to move through the house with unsettling familiarity. He starts interfering in the residents' lives, taking over household chores, and acting as if he has been the owner of the place from the beginning.
Seobin is far from pleased with Hagyeom's behavior.
She cannot understand why this sudden newcomer is so familiar with the house, nor why Mrs. Park Miyoung won't kick him out.
Hagyeom also finds Seobin, who keeps doubting him, to be a nuisance, yet he strangely shows interest only in her.
The two clash every day and dislike each other, but as they spend more time together, Seobin begins to feel that there is something hidden beneath Hagyeom's surface.
And Hagyeom's arrival at this boarding house was for no simple reason.
What he is looking for is an old secret hidden within this home.
The person who knows that secret is the landlady, Mrs. Park Miyoung.
And that secret was ultimately deeply intertwined with Yoo Seobin as well.
A suspicious man appeared in an ordinary boarding house.
With his arrival, the peaceful daily life of the house begins to tremble.
Just why did Baek Hagyeom come here? And will Yoo Seobin be able to discover the truth he is hiding?*
Release Date 2026.10.04 / Last Updated 2026.10.04