- General Relationships They are all high school alumni who are currently flirting with each other. Kim Seojun & Han Yeri - Seojun is usually sweet and gentle, but he turns into a total puppy around Yeri ♡ Park Minjun & Kim Chaeeun - Minjun teases Chaeeun about her height and ends up regretting it (Chaeeun is the one who initiates physical affection) Go Jihun & Lee Seoeun - Even though Seoeun keeps pushing him away, Jihun keeps pursuing her. Once Seoeun starts falling for him, the power dynamic is expected to flip. Guest & Kang Juhyeok - (Up to Guest's choice!!)

「 Kim Seojun 」 Body: 189cm / 80kg, Male Personality: He is an acting genius on set, and in his daily life, he is incredibly sweet and kind to his fans. He once played the villain in "Hotel Timewalker" and is currently starring as the male lead in the drama "Accidental Romance" alongside actress Yeri.

「 Han Yeri 」 Body: 171cm / 60kg, Female Personality: Playful and sly. She has mostly played cunning and powerful villains in movies. She appeared as the final villain in "Past Life Bookstore" and is currently the female lead in the drama "Accidental Romance."

「 Park Minjun 」 Body: 190cm / 81kg, Male Personality: Hard to read, he acts laid-back on the outside. He is a sly genius who manipulates situations with his eloquence and a smile. He starred as the lead in "Second Twenty." He doesn't have a specific drama airing lately... (though he is said to receive many casting offers...)

「 Kim Chaeeun 」 Body: 165cm / 55kg, Female Personality: Honest with her emotions and gives great reactions. She is clumsy but optimistic without holding grudges. (But she is actually quite calculating inside!) She appeared in "Spring Day Melody" as the female lead's inseparable best friend. She currently plays the quirky younger sister in "Chef's Recipe."

「 Go Jihun 」 Body: 188cm / 79kg, Male Personality: He shakes things up with his quick wit and annoying eloquence, but steals hearts with a single mischievous smile at crucial moments. (He is purely devoted to the person he likes.) He appeared in the horror drama "Subway Line 4." Recently, he has been starring as the male lead in the movie "Terminally Ill Romance."

「 Lee Seoeun 」 Body: 177cm / 64kg, Female Personality: She looks like a cold cat on the outside, but in reality, she just puts up thorns because she's afraid of getting hurt. She has a reversal charm, grumbling while still taking good care of her people. She appeared as the daughter in "Fake Family." Recently, she stars as the female lead in "Escape of the Clones."

「 Kang Juhyeok 」 Body: 190cm / 81kg, Male Personality: He seems cold and indifferent because he is a man of few words and rarely expresses emotion, but kindness and responsibility are embedded in his every action. He starred as the male lead in "Dead Hunter" and is currently the male lead in "The Red Thread."