Luhan / Lu Han

Luhan is a distant loner who demonstrates a high level of maturity, his overly formal speaking tone being one of the most telling signs. Luhan has a pessimistic outlook on life due to his parents and having to move frequently as a result of said parents' demanding careers but he eventually warms up as he explores friendship. He cares about Seohyun much because he thinks that Seohyun need to have a brother that protecting no maater what and the group mistaken him as he likes Seohyun.Yes at first that was his attention but in the end he started to develops feelings to her and get jealous when some boy are close to her.

Park Chan Yeol

Chanyeol is a clumsy, somewhat paranoid transfer-student who arrived six-months before the Sehun and Luhan. He is often the target for jokes about his lack of muscles and body strength. Sehun first sees him crashing his bike into a garbage can - the first of many times - but he doesn't introduce himself Sehun until he helps Chanyeol by getting him out of a garbage can. He cares deeply about Jessica Jung .

He tends to be a bit of a wannabe ladies' man and has a fascination for girls. But beneath most of that , he shows great insight with decent deducing, and is often on task of the situation on hand, and can be a very serious individual at times. He also tends to keep a good face in order to make sure the group is in their best spirits, he cares a lot about Luhan and Sehun, as well as having a strong sense of justice. A notable gag is that Chanyeol seems to be at odds with Lee Sun Kyu or Sunny several times. His biggest insecurities are boredom and loneliness. He feels the town has nothing comparing to the city and that his life in the city is the reason for his unpopularity. By the end of the story he has grown to love the town and has made friends with the rest of the group and feels accomplished in having a notable contribution to the group.

LEE SUN KYU /SUNNY

Being a tomboy, Sunny often behaves like a boy but manages to stay feminine. Other than that, she has a bright and upbeat personality, often trying to cheer up the group by joking about the case. She is also obsessed with kung fu and is a huge fan of martial arts movies like Trial of the Dragon, and is furious once she finds out that Chanyeol broke her disc. Generally, she has a short temper with him and exploits this in order to get her beloved steak for free at Myungdong Mall. Sunny beats Chanyeol up repeatedly whenever he does something stupid or offend her in some way. Sunny's biggest insecurity is her femininity. She has an inferiority complex to Seohyun and is jealous of all the male attention Seohyun receives. This causes her to get pleasure from Seohyu relying on her for confidence and protection. By the end of the story Sunny acknowledges her own personal strengths and in the new epilogue becomes perfectly comfortable with her own feminine side.

Seo Joo Hyun/Seohyun

SeoHyun is a rich young woman who is popular with boys and girls alike. Often scoring the best during exams, she is very intelligent and often repeats the material with Sunny, her best friend. As a smart, beautiful, feminine, and fair-skinned teenager, she has attracted many male characters in Incheon, but she doesn't seem to be comfortable when someone mentions her beauty.

At first, Seohyun is very introverted, but she gets livelier after she is rescued from the club. Her biggest insecurity is being chained down. Her whole life she has felt she is on a railroad track with no opportunity for deviation and as such feels the desire to run away from this life and start anew. By the end of the story she has realized that she is in reality perfectly comfortable with the way her life is progressing and she can control her life just as much as she desires to.

A notable running gag is that she tends to have very easy laughing fits from the slightest jokes, though there are later times where even Sehun of all people fails to make her embrace a joke. Another running gag is that she is practically an airhead at times and completely misreads situations.

In the story she seems to have an affection to Luhan because out out all of the guys she would hang out with him and talk to him more. In addition it would clearly seem that towards her liking to him that she might have a crush on the Luhan.

Huang Zi Tao / Tao

A student of Incheon High School, Tao often skips classes and apparently gets into many fights in the streets. (However, it is implied that his reasons for doing so are borne out of trying to make others happy, not out of simple delinquency; the first example of his violence, beating up a biker gang, is explained by his mother as an attempt to make her happy, as the bikes were too loud for her to get any sleep). His family runs a textile shop with the Seo being their acquainted costumers, and Tao is also very skilled with tailoring for that very reason. His biggest insecurity is his uality which becomes a running joke throughout the rest of the stort. He starts the story as scared of showing anything potentially feminine in interest and constantly has a tough guy act going on. By the end of the story he acknowledges it's alright to have interests whether they be masculine or feminine and that his uality isn't really the issue.

Im Yoon AH / Yoona

Yoona is cheerful, outspoken, rather flirty, is very bubbly, and can be quite boastful about herself. She used to be an idol but she quit to work at her family business (citing health reasons). She is stressed out, and tired of show business because she doesn't know if the Rise that everyone admires is the 'real' Yoona, or the person of Yoona that she presents to the masses. She seems to have obvious feelings for the Sehun. Her biggest insecurity is her individuality. She fears that she has no true self and that her career is making her lose it due to constantly putting up fake faces to the general public. While she initially attempts to change this by running away she is left feeling unsatisfied. By the end of the she aknowledges all of those fake selves she presented to others were actually just other sides of her true personality. Upon realizing this she decides to start up her career content that she will be portraying her true self for all to see

Oh Se Hun

Sehun is seen flirting with the girls of the group on numerous occasions, but fails every time. Other than that, he is bubbly and cute and is known to cheer up the mood when investigating the case, much like Sunny. He idolizes Luhan, to the point to call him Sem. He seems to care a lot about Nanako and calls her "Nananie," even when she's in a near-death state after being kidnapped.When the group want some advice they talk to him especially Luhan or Tao.He seems getting quiet when Yoona's around but he cares about her most.

Amber Josephine Liu

Having lost both her parents in a car accident when she was very young, Amber acts very mature in spite of her age. As a descendant of a respected lineage of famous detectives, she wears formal clothing, and deepens her voice when she speaks in a sophisticated, stilted manner. She yearns to be seen as an adult, and expresses frustration at being treated like a child by the police force. Her biggest insecurity is her gender, as well as her age. She hates being looked down upon, and fears no one would take her seriously since she was not born male, in an occupation that favored it.

By the end of the game, due to her own will and with Tao's help, she accepts the fact she does not need to change who she is to suit the world. In the epilogue, she has started dressing more freely, disguising her femininity less than before. She is comfortable with not only who she is, but also that everyone else is aware that she is female.

Despite her mature nature, Amber has a shy side to her, as she refuses to wear a bikini at the Incheon Beauty Pageant. She also becomes embarrassed during the group's visit to the Seo Inn, when the schedules for the hot springs' use were confused. During the ski trip, Ambers appears to be afraid of ghost stories.