A deal struck on the most pressured day of the school year turns three classmates into suspects in their own futures. The Substitute has released its main trailer, and the new footage shows how one agreement between Nam Jae-yeop, Kang Geon-tae and Joo Hee-dong spirals into a crime none of them can take back.
TVING released the main trailer on November 9, ahead of the series premiere later this month. In the trailer, the three students are introduced through the very different pressures pushing each of them toward the same dangerous choice.
The Substitute is a crime thriller about three young men whose conflicting desires and personal struggles lead them toward an irreversible crime on the day of the college entrance exam. The series frames that single day as one where a lifetime is at stake, with each character's lack and longing colliding at the worst possible moment.
Kang Geon-tae holds the top rank at his school as a special scholarship student from a low-income family, yet poverty keeps pressing down on him despite his results. His line in the trailer, "I just wanted to go to college," is followed by a desperate cry of "I'm going to live a normal life," laying bare how strongly he wants the ordinary life other students take for granted.
That longing is what pushes Kang Geon-tae toward a choice he cannot undo. A shot of him with a tightly clenched fist and fierce eyes raises the question of what kind of game he has started by putting his whole future on the line.
Nam Jae-yeop stands at the opposite end of that world as a model student who appears to want for nothing. After being slapped, he lets his anger show in the line, "I'm a defective product — that's why I've always felt broken," hinting at the insecurity hidden behind his perfect mask.
Nam Jae-yeop and Kang Geon-tae become entangled in a dangerous deal, each holding the other's weakness. Their relationship twists further out of control as the deal stops being a private arrangement and starts deciding what happens next for both of them.
Joo Hee-dong, Kang Geon-tae's closest friend, is pulled into that entanglement and pushes the tension higher. His hurt line, "You think they'd accept me if I went alone without Geon-tae?" carries both his admiration for Kang Geon-tae and a quiet sense of lack underneath it.
As the three friends begin to suspect one another, cracks spread through a friendship that was never as equal as it looked. Kang Geon-tae's closing question in the trailer, "Are you willing to bet your life on it?" underlines just how dangerous the deal in front of them has become.
Watch the main trailer here:
The production team commented, "The butterfly effect triggered by a one-time deal leads to an unpredictable web of crime. Please look forward to the suspense that unfolds as the true nature of various characters is revealed when the young people cross the line and their desires clash."
The series reunites director Park So-yeon and writer Choi Su, the team behind Pyramid Game. Bae Hyeon-seong, Cha Kang-yoon and Park Yoon-ho lead the cast, with Uhm Ji-won, Park Hyuk-kwon and Baek Ji-won also appearing in the series.
The Substitute is a 10-episode TVING original series, and it will premiere exclusively on TVING on November 23 at 6 p.m. KST. No North American streaming platform has been announced for the series.
Source: TVING
