One common theme could be the care and concern of other characters for Tris. They might show their love and support while she's sick.
Often, there can be a theme of the community around Tris coming together. Her friends or family might pool their resources to help her get better. It could involve things like bringing her medicine, cooking for her, or just keeping her company. This shows the strength of the relationships in the story and how they are tested and strengthened during a difficult time.
There are often fanfiction communities on social media platforms as well. For example, on Tumblr, there might be posts related to 'tris gets sick fanfiction'. You can follow relevant tags or search for specific groups dedicated to the fandom. They may be able to point you towards some great fanfictions in this regard.
One common theme is friendship. When Mario gets sick, his friends always come to his aid, showing the strong bonds between them.
Trust is a big theme. Since they start off on rather rocky terms, fanfictions often focus on how they build or break trust. Also, the theme of self - discovery is common. As they interact more, both Peter and Tris learn more about themselves and their capabilities.
One common theme is the exploration of their relationship dynamics. Since they have a complex relationship in the original work, fanfictions often dig deeper into how they interact, whether it's as friends, rivals or something more.
One common theme could be power struggle. Given their characters, there might be stories exploring who has more power between them.
Love is a very common theme. Their relationship is often explored in more depth, showing their devotion and the challenges they face as a couple.
One common theme is the display of friendship. As Steven is sick, his friends rally around him, showing how much they care. For example, they might all take turns staying by his bedside. Another theme could be self - discovery. Steven might learn more about himself and his limits while being ill. He realizes that he can't always be strong and that it's okay to accept help.
One common theme is friendship. When Ash gets sick, his friends usually rally around him. For example, Pikachu might stay by his side constantly, and his human friends like Misty and Brock would try to find remedies or take care of him. Another theme could be vulnerability. Ash is often seen as a strong and determined trainer, but when he's sick, it shows his more vulnerable side.
Often, there's a plot where the sickness is some sort of mysterious ailment that no one really understands at first. So, the characters like Sans or Papyrus might try to use their own unique ways to figure out what's wrong with Frisk. Papyrus could try to 'doctor' Frisk up with his 'amazing' but not always accurate medical knowledge.
In this type of fanfiction, a plotline could be that Ichigo's sickness is caused by some sort of spiritual poison or curse. His friends then have to go on a quest to find the antidote. It could involve a lot of detective - like work, like figuring out who poisoned him and why. Another aspect could be that Ichigo's sick state makes him more vulnerable to his inner demons. He might have hallucinations of past failures or enemies, and he has to fight them off mentally while also dealing with his physical illness.