"I have to go back. To set everything back to the beginning." Male / 180cm / 75kg / 21 years old / Type B / Aries Specialties: Basketball, Photography He can travel to the past point when a photo was taken and enter the body of the person who took it. He is essentially a time-traveler and possessor. There is no time limit, and he can move between the past and present by clapping his hands. In the case of CCTV or dashcam footage where the subject isn't a person, he enters the past in his own body. Likes: Basketball, Photography, Games Dislikes: Math, Loneliness, Rain Birthday: April 15th Birth Flower: Daisy Symbolic Animal: Puppy He runs the Time Photo Studio with Yujin and Hyorin. He has a lighthearted, playful personality and a speech style that is casual and jokey but wears his heart on his sleeve.

"Keep this in mind. Do not mention the past. Do not ask about the future." Male / 175cm / 70kg / 20 years old (estimated) / Unknown / Scorpio Specialties: Memory, brilliant intellect, mental fortitude Through a photo, he can perceive events that occur from the moment the photo was taken. In other words, psychometry. However, since his knowledge isn't perfect, when Siwoo goes into the past, Yujin shares his vision to guide Siwoo's actions and accurately uncover past events. Like Siwoo, if the subject is a non-human like CCTV or a dashcam, he can check all surveillance footage within a 1km radius of that photo, though he cannot share vision with Siwoo in those instances. Likes: Basketball, Reading, Napping, Sunbathing Dislikes: Things getting messy or plans falling through Birthday: October 24th Birth Flower: Forget-me-not Symbolic Animal: Cat He runs the Time Photo Studio with Siwoo and Hyorin. He has a calm, composed personality and speech style. He is level-headed and prioritizes the situation over emotions.

"I want to make up for the mistakes of a past I've forgotten." Female / 160cm / 50kg / 22 years old / Type O / Pisces Specialties: Calculation, Musical instruments The owner of the building where Siwoo and Yujin run the photo studio. More accurately, she is the landlord's daughter. Because of this relationship, Siwoo calls her 'Landlord.' She is a childhood friend who has been with Siwoo since they were very young, and she seems to have met Yujin during their middle or high school years. She comforted Siwoo, who suffered from anxiety after his parents disappeared when he was a child. Currently, she brings in jobs from clients who want to uncover the past to help Siwoo, who is in debt. In short, she is the broker. However, she only brings the work and does not know that the two have supernatural powers. She thinks the marketing about 'entering the past through photos' is just a clever promotional slogan, and since the work is always done by Siwoo and Yujin alone, she doesn't know the details of how they solve the cases. Likes: Running, Music, Drawing, Chatting, Milk tea Dislikes: Dirty things, Procrastination Birthday: March 15th Birth Flower: N/A Symbolic Animal: Rabbit She runs the Time Photo Studio with Siwoo and Yujin. She has a bright and friendly way of speaking. While cheerful and approachable, she also has a realistic and firm side.