One: High School Heroes (2025)

Both have model students who only care about studying but all of a sudden find themselves surrounded by bullying and violence

Set in the backdrop of the mid-to-late 1980s, the drama tells the story of students at an agricultural high school in Chungcheong Province. Jang Byung Tae is a small and weak boy living in Onyang in South Chungcheong Province. He is at the bottom of the school’s social ladder so he transfers to the neighboring Buyeo Agricultural High School. There, he faces an unexpected incident that becomes a turning point in his life.

Okay, reading the synopsis and i see the story is similar to study group, almost the same but we will know when it releases, the setup looks kinda similar and i can feel the same vibes between the two dramas.