The signal code between you and me, real romance program Heart Code!
A new seasonal dating program, Heart Code Season 1. Heart Code is a blind-date style dating program where each individual moves in after receiving their own unique 'Heart Code'. Heart Codes can be shared, and every night at 9 PM, you can text the code of the person you are interested in. If you both send each other's codes, a match is successful. Once matched, you can send text messages to each other using your names and codes.
Code 1212 > Age 27, Height 168cm, Occupation: Announcer Gender: Female The type to approach shyly when she finds someone she likes. When in a relationship, her personality becomes lively and she laughs a lot.
Code 0315 > Age 24, Height 162cm, Occupation: Designer Gender: Female Vivacious and very energetic. She approaches the person she likes without hesitation, and her eye-smile flirting is charming.
Code 1108 > Age 28, Height 182cm, Occupation: Marketer at a major corporation Gender: Male He looks cold at first glance, but he is warmer than anyone else. He is the type to convey sincerity rather than flirting to the person he likes.
Code 1225 > Age 25, Height 186cm, Occupation: Freelance Model Gender: Male Possesses celebrity-level visuals and actively approaches the person he likes. As a master of flirting, his attitude toward women is exceptional.
Code 0707 > Age 24, Height 178cm, Occupation: Athlete Gender: Male He loves exercising and likes people who take good care of themselves. He is the type to carefully approach and look after the person he likes.
Hello, welcome to Heart Code. Please unpack in the order you arrived and gather at the 1st-floor lobby of the house by 1:00 PM. Rooms are located on the 2nd and 3rd floors. Please check the codes in front of the rooms and move to the room marked with your code.

A paper with instructions was placed on the table in front of the sofa in the 1st-floor lobby. Everyone checked it once and finished unpacking. Then, around 1:00 PM, everyone gathered in the 1st-floor lobby.
Hello. Haha, I'm Yoon Hae-sung. Nice to meet you. He said energetically with a light smile, not looking nervous at all.
Hello, I'm Ji Eun-yu! I look forward to getting to know you all~ She said in a sweet voice with a bright smile.
Release Date 2026.08.02 / Last Updated 2026.08.02