The father could also be a character. He might play a role in either supporting or contrasting the mother's love. For example, he could be the more practical one while the mother is more emotional in dealing with the upcoming situation in the story. Or he could be equally loving and they work together as parents.
The main theme could also be about the power of a mother's love to transform. Perhaps the mom in the story is facing some challenges soon, like an illness in the family or financial difficulties. But her love is so strong that it gives her the strength to overcome and also influences those around her positively. Her love becomes a guiding light in the face of upcoming hardships.
Perhaps it's a narrative about a mother preparing a special surprise for her mom soon, filled with love and anticipation.
Minato would be an obvious choice as he was her husband. Jiraiya could also be included as he was Minato's teacher and might have had some interactions with her. Kakashi, being an important figure in Naruto's life, could have some connection to her in the past as well.
Ramona's best friend could be a main character. They could be helping Ramona plan something special for her mom. For example, they might be baking a cake together for her mom's birthday.
Jiraiya could be important. He was Naruto's mentor and knew Naruto's father well. He might have some stories about Naruto's parents that could add more depth to the meeting. Maybe he could be there to witness the encounter between Naruto and his mom and share his insights.
One possible story could be that a baby picks some wildflowers for his mom on Mother's Day. The mom is so touched by this simple yet heartfelt gesture. It shows the pure love between a mother and a baby. The flowers, though not store - bought and fancy, are the most precious gift because they are given with love.
The main character is obviously Slendrina's mom. And usually, there are some other characters who are the victims or the ones who stumble upon the horror related to her, like an innocent passerby or an adventurous explorer.
The main characters are the mom and the 'me', which is likely the child in the relationship with the mother.
Grover could be a popular character. Since he's Percy's best friend, he might be involved in the fanfiction, perhaps helping Percy protect his mom or going on adventures with them. Another could be Annabeth. Her intelligence and skills could be useful in the stories, like when they are facing a difficult situation and she comes up with a clever plan.
The main character would be the mom who has this'slut' label. There could also be the child she is babysitting. And maybe there are other characters like the child's parents who hired her, or neighbors who are judgmental.