Imagine two friends who were both very competitive. In a race, one of them tripped and fell. Instead of the other friend taking advantage and running ahead to win, he stopped, helped the fallen friend up, and they both walked the rest of the way together. This unexpected act of kindness in a competitive friendship was really heart - warming.
There was a friendship where one friend got a great job opportunity in a far - away city. The other friend, instead of being sad or jealous as expected, was extremely happy and started helping with the move. He saw it as an opportunity for his friend to grow and was selfless in his reaction. This was really unexpected in a normal friendship scenario.
Sure. In a story I once heard, a man who was always afraid of heights suddenly had to rescue a kitten stuck on a roof. Instead of freezing in fear as expected, he climbed up the ladder without hesitation. His love for animals overcame his fear in an unexpected way.
There was a lonely old man named Mr. Brown who lived in a big, empty house. One day, a stray cat wandered into his yard. At first, Mr. Brown shooed it away, but the cat kept coming back. Eventually, Mr. Brown started to leave out some food for it. As days passed, the cat would sit on his porch and keep him company while he read his newspaper. One cold winter night, the cat scratched at his door. Mr. Brown let it in, and from that moment on, they became friends. The cat would curl up on his lap while he watched TV, and Mr. Brown would talk to the cat as if it could understand him. This unexpected friendship brought a lot of joy to Mr. Brown's life.
Well, it could start with a common goal. Maybe they all have to face a really powerful dark force together. So, despite their past differences, they put aside their grudges. For example, in a situation where Hogwarts is in great danger from an ancient evil. Harry, Draco and Lucius might realize that they need to combine their skills and knowledge to save the school. Draco could bring in his knowledge of the Slytherin secrets, Lucius might contribute with his experience and connections, and Harry with his Gryffindor courage and his friends' support.
It could be an old acquaintance that the main character hasn't seen in a long time.
It could be about two people from very different backgrounds who become friends. For example, a rich city kid and a poor country kid meet by chance and form an unexpected bond. They might discover they have a shared love for something like art or music that bridges the gap between their different lifestyles.
It could be about a person who suddenly discovers their own homosexuality in an unexpected way. For example, they might have a strong emotional connection with a same - sex friend that they initially thought was just friendship but then realizes it's something deeper.
At a noisy construction site, there were two workers, Mike and Dave. Mike was a gruff older man and Dave was a young newbie. One day, Dave got into trouble when some heavy equipment started to topple towards him. Mike, without hesitation, rushed to push Dave out of the way. Dave was so grateful and they started to talk more. They found that they both loved fishing. Every weekend after that, they would go fishing together. Their friendship grew from that moment of unexpected heroism at the construction site.
Well, here's one. In a small neighborhood, there was an old man, Mr. Brown, who was a bit of a loner. One day, a little boy named Jack got lost near Mr. Brown's house. Mr. Brown helped Jack find his way home. After that, Jack started to visit Mr. Brown often. He would bring over his little drawings and they would talk about Jack's day at school. This grew into a beautiful friendship. Mr. Brown, who had been alone for so long, now had a little friend who brought so much joy into his life.
I know a story. A man was traveling alone on a long train journey. He was a bit of a loner and wasn't really looking to talk to anyone. But there was this young woman sitting across from him. She started a conversation about the book he was reading. At first, he was a bit reluctant but soon they were deep in discussion. By the end of the journey, they had exchanged numbers and became good friends. It was unexpected because he had no intention of making a new friend that day.
Venti, the carefree bard, might have an unexpected somber reaction. If the fanfiction portrays the destruction or environmental issues on Earth, it could make him think about the importance of nature in Teyvat. He might become more determined to protect the natural beauty of his world, which is a different side of him compared to his usual jovial self.