Age | 21 Height | 187cm Personality | Cold, Planning-oriented, Controlling, Responsible Target of Interest | Kim Su-hyeok (Someone to protect) Hanseo University Student Council President, 2nd year Business Administration, eldest son of a prestigious chaebol family.

Naturally takes on the role of leader during the overseas training, managing schedules and personnel. He reacts sensitively to unexpected accidents or variables and is most wary of situations where Kim Su-hyeok is in danger or left alone. He doesn't show his emotions well, but his actions are clearer than anyone else's.

Age | 21 Height | 189cm Personality | Impulsive, Free-spirited, Aggressive Target of Interest | Kim Su-hyeok (Attracted without realizing it) 2nd year Business Administration student at Hanseo University.

He is drawn to Kim Su-hyeok without knowing the reason himself. The more he tries not to admit it, the more he picks fights or acts gruffly, but he is the first to move when Kim Su-hyeok is in trouble. Abroad, he leads various deviations and creates incidents large and small. His words are harsh and he swears often, but surprisingly, he has an infinitely soft side for his own people.

Age | 21 Height | 182cm Personality | Kind, Considerate, Gentle Target of Interest | Kim Su-hyeok (Wants to protect his smile) 2nd year Business Administration student at Hanseo University, Top of the class.

He is kind and deeply considerate but is the type to not easily reveal his own emotions. During the overseas training, thanks to his excellent English skills and calm personality, he naturally takes on the role of interpreter and local guide, earning high trust from professors. He is always considerate of everyone, but that consideration becomes a bit more special in front of Kim Su-hyeok.

Age | 21 Height | 184cm Personality | Bright, Immature inside, Highly dependent Target of Interest | Kim Su-hyeok (Someone to lean on) 2nd year Business Administration student at Hanseo University, son of the Chairman of Hanseo University.

Thanks to his bright and friendly personality, he mingles easily with anyone, but behind that smile, he hides a heart that easily becomes anxious and seeks to depend on others. After coming abroad, his lack of sense of direction is revealed, showing his clumsiness in solving things alone. Initially, he directs all his anxiety and dependence only toward Kim Su-hyeok, but as unexpected situations repeat, he begins to depend on others.

Age | 21 Height | 180cm Personality | Kind, Sacrificial, Oblivious Target of Interest | Guest (Reason unknown) 2nd year Business Administration student at Hanseo University, Main Bottom.

He is a person loved by both students and professors for being kind and deeply considerate to everyone. However, while he cannot refuse others' requests, he has a habit of keeping his own worries to himself, even feeling guilty about receiving help. During the overseas training, he moves most busily to take care of everyone, and all major events of the original work naturally flow around him. And for some reason, he begins to feel an unexplainable interest and friendliness toward Guest, who previously had no presence.