Trust could also be a major theme. For the promise to hold any meaning, the characters need to trust each other. If one breaks the trust, it could put the whole love story in jeopardy. So, the story might explore how trust is built, tested, and regained in the context of this promised - based love relationship.
One possible theme could be loyalty. Since there is a promise involved, loyalty to that promise and to the person would be important.
One possible theme could be betrayal. Since a promise has been broken, it gives a sense of betrayal, either by Naruto or by the person to whom the promise was made. This can create a tense and emotional atmosphere in the story.
One possible theme could be self - discovery. As Ladybug and Cat Noir grow, they might discover new things about themselves. Another theme could be friendship. Their relationship as superhero partners could be explored more deeply in terms of how it helps them grow.
Once upon a time, there was a boy and a girl. They promised to love each other forever. They met in a small town. The boy was shy at first, but his eyes showed his true feelings. The girl noticed and was touched. They started to date, going for walks in the park, sharing ice - creams. They promised that no matter what happened, they would stay together. Years passed, and they got married. Their promise of love still holds strong.
A third theme might be the pursuit of dreams. If one or both of the lovers had big dreams, like traveling the world or becoming an artist, their love would be intertwined with their individual pursuits. They might have to choose between love and their dreams or find a way to make both work in the context of their relationship.
One possible theme could be sacrifice. In 1941, during the war, lovers might have to sacrifice their time together, or one might sacrifice their safety for the other. Another theme could be hope. Despite the dark times of war, their love could be a source of hope for a better future.
One possible theme could be nostalgia. Since it's related to 1989, it might evoke a sense of longing for the past, especially for the time when the love story took place.
In a 2023 love story, the theme of second chances might be present. Maybe someone had a bad breakup in the past and in 2023, they meet someone new who gives them a chance to love again. Technology can also be a theme. People might have met through a dating app in 2023 and their relationship developed from there. And of course, the theme of family could be there. A couple in 2023 might be building a relationship with an eye towards starting a family in the future, so they are learning to support and care for each other like a family unit.
One possible theme could be social change. In 1950, society was evolving, and a love story might have been influenced by new social norms. Another theme could be sacrifice. The lovers may have had to sacrifice personal desires for each other or for their families.
Another theme could be hope. People in 1948 were looking forward to a better future after the destruction of the war. So the love between two people could represent the hope for a new start, both in their personal lives and in the broader context of the world around them. It could also be about the theme of change. 1948 was a year of significant change, and the love story could revolve around how the characters adapt to the new social, political and economic changes while falling in love.
One possible theme could be sacrifice. Given the historical context of 1917 which might involve war or social upheaval, the lovers may have to sacrifice their own desires for the greater good or for each other.