It's definitely gained a significant fan base. The interesting characters and engaging plot have contributed to its popularity. Also, the way it combines romance and mystery elements appeals to a wide audience.
There was a school play where an actor forgot his lines. Instead of panicking, he started making up the most hilarious lines on the spot. The whole audience was in stitches. It was a great example of how mistakes can turn into something really funny at school.
It's a story that typically involves elements like love, relationships, and perhaps some obstacles to love. Maybe it has a character who disrupts the normal flow of romantic relationships, which is what the 'killer' in the title might imply.
One great fanfiction idea could be them sharing a picnic by a beautiful waterfall. They could talk about their dreams and how far they've come together. This would be a really sweet and innocent moment that shows their deep connection.