A plot could be that the brothers were wrongly accused of a crime. They faced discrimination and were separated while trying to prove their innocence. Their lives were turned upside down and the whole experience was full of sadness. For example, they might have lost their jobs, friends, and respect in the community during this ordeal. And the fact that they had to go through it all while being separated from each other made it even more difficult.
One possible plot could be that tofuu was a kind - hearted creature but was wrongly accused of something it didn't do. As a result, it was shunned by the community it belonged to, which is a sad turn of events.
Another possible plot is that one half - brother has a very privileged life while the other has a difficult one. The less - privileged one might initially resent the other. But then, they find out that they both have their own insecurities and dreams. The story could then be about how they help each other achieve their dreams, with the more privileged one using his resources to assist the other, and in the process, they form a deep and meaningful bond that transcends their initial differences.
One possible plot could be that Nelson gets excluded from a group activity he really wanted to be part of. He's always been the outsider - type bully, but this time it really hits him hard and makes him feel sad.
One possible plot could be that the bear is a loner in the Shrek world. It sees all the other characters like Shrek, Donkey, and Fiona having their own groups and relationships. But the bear, due to its gruff appearance or different habits, is shunned. So it becomes sad, feeling like it has no one to belong to.
A third possible plot could be sacrifice. In the kmjs sad love story, one of the lovers might have to sacrifice their love for the sake of something else, like a greater good or to protect the other person. For example, one might choose to leave the relationship so that the other can pursue a great opportunity without being held back. This selfless act, while noble, still results in a sad love story as they have to give up their love for each other.
One possible plot could be that Kev has a pet dog. While Kev is gaming, the dog feels neglected and becomes sad. The story could then be about Kev realizing his mistake and trying to make it up to the dog.
Pookie might have been bullied by other penguins in the game. They could have made fun of his appearance or the way he played the mini - games. This would surely make Pookie sad and form the basis of the story.
One possible plot could be that Alvaro was bullied in Roblox. Maybe some other players were mean to him, made fun of his avatar or the things he created in the game. This would definitely make for a sad story.
Maybe Trixie fails at a really important task. For instance, she was supposed to protect Ponyville from a certain threat using her magic, but she fails miserably. This failure weighs heavily on her, and she becomes sad and full of self - doubt. She might start to isolate herself from the other ponies as a result.
One possible plot could be that Sondash lost his best friend in an accident. This would be a very sad event that could lead to feelings of loneliness and grief for Sondash.