What could be a sad part in a Monster School story?

Once in Monster School, there was a little ghost named Casper. He was always left out because he was too friendly and not spooky enough. The other monsters like the vampires and werewolves would not include him in their games. He felt so sad and lonely, always wandering around the school corridors by himself, longing for a friend who could accept him as he was.

For me, the scariest part is when the cookie monster starts chasing the character in the story. There's this sense of impending doom as it runs after them, and the character is desperately trying to escape. It makes you feel their fear and panic, especially if they keep tripping or getting blocked by things as they flee.

Losing contact with Earth could be really sad. Imagine an astronaut who suddenly can't communicate with their family or mission control. They would feel so alone and cut off from everything they know. It's like being lost in a huge, empty void.

When a penguin is bullied by others. Say there's a small, shy penguin who is made fun of by a group of mean penguins. They push him around, take his toys (like the sled or the fishing rod). The poor penguin would be so sad that he would hide in his igloo and not come out for days, feeling lonely and unwanted.

The saddest part is probably when the cat is abandoned. It's heartbreaking to see a cat that has known love and a home suddenly left all alone, not understanding why its humans are gone.

A monster could be a shy, slime - like creature that hides under the desks. It's scared of the noise and chaos in the school. One student discovers it and decides to protect it. The student brings it little bits of food. Eventually, the slime monster gains confidence and starts to interact with other students in a very gentle way, like giving them high - fives with its gooey tentacles.

The sad part could be when they try to share their ice powers with each other. Elsa is very protective of her powers as they have caused her so much pain in the past. Jack Frost, on the other hand, is eager to show off his skills. When Elsa recoils from Jack's eagerness, Jack feels rejected. Elsa then feels guilty for pushing him away. This misunderstanding and the resulting hurt feelings on both sides make for a very sad part of their story.

Probably the lack of identity. They are just numbers in the Empire's military. No one really cares about who they are as individuals. For example, if a stormtrooper dies, they are quickly replaced, and no one mourns their loss.

In this '100 monster in my school story', it's possible that the monsters are on a mission. They are searching for a special item that was lost in the school many years ago. As they search, they disrupt the normal school routine. Some students are scared, but a group of brave students decides to help the monsters. Along the way, they learn a lot about the monsters' history and the secrets of the school that no one knew before. This adventure could bring the students and the monsters closer together and change the way the school operates forever.

In a monster goes to school story, the monster might face difficulties in adjusting to the human environment. For example, it could be too big for the classrooms or the uniforms. But it could also bring unique things to the school. Maybe it has a special talent like being able to speak to animals, which can be useful in biology class.