One great 'Brothers Conflict OC Sister' fanfiction is 'The New Sister in the Asahina Household'. It has an interesting plot where the OC sister brings a fresh dynamic to the family. The author does a wonderful job of portraying her character development as she navigates her new life with the brothers.
Develop strong relationships between the OC sister and the brothers. Each relationship should be different. Maybe one brother she has a more antagonistic relationship with at first, while with another she has an instant connection. Explore these relationships through different situations and dialogues.
Another possible plot twist is that the oc's pregnancy might be a threat to the family's harmony in a different way. For example, some of the brothers might have plans or dreams that are now put on hold because of the pregnancy, causing conflicts within the family that go beyond just jealousy or rivalry.
First, give your OC a clear backstory. For example, if they've moved to a new place, explain why. Maybe they had family issues in their old hometown. Second, give them distinct personality traits. If they're shy, show how that affects their interactions with the brothers. For instance, they might blush and stutter when talking to their crush among the brothers.
One idea could be an OC who is a talented artist. She could use her art to bond with the brothers in different ways. For example, she might paint portraits of them, which could lead to some sweet and funny interactions as they react to how she's depicted them.
One common theme is family integration. The male oc has to find his place within the complex family structure of Brothers Conflict. Another theme is friendship and rivalry. He forms different kinds of relationships with the brothers, some friendly and some competitive.
Start with small interactions. For example, let them exchange polite greetings at first. Then, gradually add moments of shared interests. If they both like a certain type of tea, have them discover this about each other over a casual tea - drinking session.
One idea could be that the OC is a new neighbor who moves in near the family. Natsume initially seems cold to her, but as time passes, he starts to notice her kind heart and unique hobbies. They bond over shared love for books and late - night stargazing.
The brothers could develop in their relationships with each other. For instance, they might have to put aside their differences and work together to support the oc during her pregnancy. This could lead to stronger bonds between some of the brothers who previously had rivalries.
There are many great authors in the Brothers Conflict fanfiction community. Some of the well - known ones are those who have been writing for a long time and have a large following. However, it's hard to name just a few as new talented authors keep emerging.