No. BTS and Blackpink are two different K - pop groups. There is no official love story between them. They are more like colleagues in the K - pop industry.
One common theme is friendship. Fanfics often explore the strong bond between the Blackpink members. For example, stories might show how they support each other through tough times. Another theme is their rise to stardom. It shows their journey from trainees to global superstars.
I'm not entirely sure there's a single official 'Blackpink Ghost Story'. It could be some fan - made or unsubstantiated rumors within the fandom. Maybe it's about some spooky or mysterious events that fans have associated with the group in a creative or superstitious way.
Rose from Blackpink has had an interesting journey. She auditioned and became part of the group. Her training days were filled with hard work. In Blackpink's music videos, she stands out with her beauty and grace. For example, in 'Kill This Love', her performance was captivating. She has a large international fan base. Her solo music, like her single 'On The Ground', has been very successful, allowing her to explore different musical styles on her own.
It would be a huge shock to the K - pop world. Fans of both groups would have very mixed feelings. Some might be excited about this new development, while others might be against it as they prefer to see their idols focused solely on their careers.
I'm not sure specifically which 'chanyeol and rose blackpink fanfic' is the best to recommend. You can try searching on some popular fanfic platforms like Archive of Our Own. There might be some well - written ones there.
One common theme is friendship. The OC often forms strong friendships with the Blackpink members, going through various experiences together. Another theme is self - discovery. The OC in these fanfics usually discovers their own talents and strengths while being around Blackpink. Also, the theme of achieving dreams is quite prevalent. For example, the OC might have a dream of becoming a great singer or dancer like Blackpink, and the story follows their journey to achieve that dream.
There's a fanfic called 'Lisa and Rose's Secret Project'. This story is about them secretly working on a side project outside of Blackpink's regular activities. It's a really interesting take as it shows their creativity and determination to do something unique, all while maintaining their close bond as group members.