The amnesia heroine can also be developed by showing her sense of humor or resilience in the face of her situation. As for Toma, you could explore his backstory more. Maybe there are things in his past that make him so committed to helping the heroine. This can add depth to his character and make their relationship more complex.
To develop the amnesia heroine further, you can have her gradually gain some independence despite her memory loss. Maybe she starts to make decisions based on her new experiences. For Toma, show his own insecurities. He might be worried that she'll remember something that will change their relationship.
One plot idea could be that the amnesia heroine starts to remember bits and pieces of her past as she spends time with Toma. Their relationship could be a mix of confusion and growing affection. For example, she might remember a special place they used to go to, and as they revisit it, their bond deepens.
One common theme is friendship - turned - love. Often, the heroine and Toma start as friends and gradually develop romantic feelings for each other. Another theme is self - discovery. As the heroine gets closer to Toma, she also discovers more about herself. For example, she might find new strengths or weaknesses. Growth is also a theme. Both characters usually grow and change as a result of their relationship.
One popular 'heroine x toma fanfiction' story is 'A Chance Encounter'. In this story, the heroine meets Toma in a very unexpected situation, like in a small, old - fashioned bookstore. Their interaction starts off a bit rocky but then gradually develops into a deep connection. Another one could be 'Under the Starry Sky with Toma', where the heroine and Toma go on a camping trip together and share many heartfelt conversations under the night sky. And 'Toma's Hidden Smile' is also great. It focuses on how the heroine manages to bring out a side of Toma that he usually keeps hidden from others.
Another theme is the mystery of the past. As the heroine tries to remember, there are often secrets and hidden events from their past that start to surface. This adds an element of suspense to the fanfiction. For example, there might be a reason why she lost her memory in the first place that is related to some past event between them. Also, the theme of self - discovery for the heroine is quite common. Through her journey of regaining her memory, she also discovers new things about herself and her feelings for Shin.
Well, there's 'Amnesia's Echo' which is also quite good. In this fanfiction, the heroine's amnesia creates a lot of misunderstandings between her and Shin. But as the story progresses, they start to communicate better and slowly, the heroine begins to regain some of her memories. It's a story full of twists and turns.
A simple plot could be that the heroine loses her memory instead of Shin this time. Shin has to help her remember who she is and in the process, they fall even more in love.
One common theme is redemption. Ukyo often has a complex past, and fanfics explore how he tries to make up for things with the heroine. For example, he might have made mistakes in the past, but in the fanfic, he works hard to prove his love and loyalty.
To develop Aoba, give him a goal. It could be something like finding a cure in a virus - ridden world if that's the setting. Then show how Virus and Trip either help or hinder this goal. Virus can be developed by showing his complex relationship with power. Is he power - hungry or just trying to survive? Trip can be developed through his relationships. He might be the one who tries to bring Aoba and Virus closer together.
Love and sacrifice are also frequently seen. Since they are in a pairing, the idea of them being in love and what they would sacrifice for each other is a popular plot point. For example, one might sacrifice their own safety for the other during a battle in the Aquarion story.
A fanfiction could develop their characters by putting them in new situations. Say they are entered in a two - person competition. Lincoln has to deal with his insecurities in a more public setting, while Lynn has to learn patience. As they work towards winning the competition, their characters are shaped by these experiences and how they interact with each other.