Half of class 1-a is underdeveloped.
Imagine barely developing your main cast, and then introducing 1-b, and then characters from an entirely different school.
Credit to https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.fandom.com/&ved=2ahUKEwiW2s7mz-6EAxUvUaQEHYekA00QFnoECAUQAQ&usg=AOvVaw3P for the images.
