In 'saiki kusuo x brother fanfiction', the plot could range from comical to heart - warming. Maybe there are stories where they team up to deal with Saiki's psychic - related problems or just have normal brotherly adventures. The fanfiction gives an opportunity to expand on the characters beyond what is shown in the original work, adding new layers to their relationship.
Well, in fanfiction about Saiki Kusuo and Teruhashi, often their relationship is explored in really interesting ways. Sometimes it shows Teruhashi's attempts to get closer to Saiki in a more comical way compared to the original series. And Saiki, with his unique powers, might react in different and unexpected manners.
Nendo could be a great addition. His simple - minded yet loyal nature can add some humor and unexpected twists. For example, he might accidentally almost expose Saiki's powers while trying to be helpful in a situation involving Teruhashi.
The contrast between their characters. Saiki with his extraordinary powers and Satou who tries to be as ordinary as possible. This contrast creates a lot of comical and heart - warming situations in the fanfic.
One common theme is the discovery of self. The OC often comes into Saiki's world and through their relationship, both characters learn more about themselves. Another theme is friendship. Despite Saiki's initial reluctance, a friendship forms which is central to many stories.
A good Kokomi x Saiki fanfic often has well - developed characters. It should stay true to the original personalities of Kokomi and Saiki while also exploring new aspects of them in the context of their relationship. For example, if Kokomi is usually calm and collected in the original work, the fanfic should maintain that essence while showing how she might act differently around Saiki.
Another theme is the idea of Teruhashi trying to break through Saiki's emotional barriers. Since Saiki is often aloof, Teruhashi's attempts to get closer to him form a major part of many fanfics. It can be really entertaining to read how she tries different strategies to get his attention.
Friendship within the family is also a common theme. Despite being brothers, they might have a friendship - like bond that is explored. For instance, they could have inside jokes and shared hobbies that are unique to them. Also, the theme of protection can be popular. Saiki might use his powers to protect his brother from various threats, or vice versa.
One popular theme is the 'unlikely couple' aspect. Given Saiki's introverted nature and Teruhashi's popularity, the idea of them getting together is an interesting concept. Another theme is the comical misunderstandings. Since Saiki has psychic powers and Teruhashi is always trying to be perfect, there are a lot of opportunities for misunderstandings that lead to humorous situations.
One common theme is the exploration of their unspoken feelings. Since in the original anime there's a lot of unexpressed emotions between them, fanfics often delve into how they might come to terms with their feelings for each other.