One great Marinette x Adrian fanfiction is 'A New Day'. It shows their relationship developing in a really sweet way. Another is 'Love in Paris' which has some interesting plot twists. 'Hidden Feelings' is also good as it delves deep into their unspoken emotions. 'Under the Stars' is a beautiful story that focuses on their moments together. And 'The Dance' is a fun read with a lot of cute interactions between them.
Tristan was a knight, often sent on important missions. Isolde was a noblewoman. They became lovers because of a love potion, and their relationship was full of passion and secrecy in the context of Isolde being promised to King Mark.
The story of Tristan and Isolde is a tragic love story. Tristan was a knight sent to bring Isolde to marry his uncle, King Mark of Cornwall. But on the journey, they accidentally drank a love potion and fell deeply in love with each other. Their love was forbidden because of Isolde's betrothal to the king. They had to hide their feelings, which led to much pain and ultimately a tragic end.
One common theme is friendship. Their relationship often evolves from strangers or rivals to friends. Another theme is mutual growth. They help each other to become better versions of themselves.
A major theme is 'slow - burn romance'. Writers love to gradually build up the relationship between Marinette and Adrian. There are also stories centered around 'shared dreams'. Maybe they both have a dream for Paris or for their future together. 'Adventure - based love' is another, where they go on adventures together and their love grows during those experiences.
There's no way to tell for sure who Adrian is from just this title. He might be a local figure in a particular community where this 'presentacion' is taking place. Maybe he's someone known for his interesting stories or he could be a new face who has a very personal and secret story to share.
Tristan first met Isolde as part of his duty. He was tasked with bringing her back to Cornwall for her wedding to his uncle, the king. So their initial meeting was in the context of this arranged marriage mission.