Both dramas have similar themes of college students, love, coming of age, friendships, and more.
Both revolve around different age students.

College-aged students find love and relationships and navigating rocky roads between them.
Both are coming of age stories.

College-aged students finding out about life and various coming of age stories told from their perspectives

Co-workers (in the food industry) get into a relationship without meaning to be in one. Family, relationships, and friends are affected in different ways.

High school students in a conspiracy with the school and other powers
Coming of age story
School administration vs. students

Story of high school-aged students in a coming of age adventure takin gon life and various experiences.

1. High school-aged story
2. A conspiracy among the protagonists and other players
3. Coming of age stories

1. High school setting
2. Conspiracy on the part of school administration and teachers
3. Coming of age stories

Workplace budding romances as the protagonists are placed in situations where they must, ultimately, work with each other and develop a bond.

The same themes of characters thrust into situations beyond their control.
Characters develop feelings for each other through the experiences they find themselves in.

Similar themes of young adult love, school, exploration, relationship drama and coming of age.
University students in similar situations.

Similar themes of school friends, discovery, coming of age, romance and BL.
Not to mention the same main star.