Often, they emphasize their strong friendship. Since they are in the same group, many fanfics show them supporting each other through tough times in the music industry.
One possible plot could be that Sungjae gets injured during a concert. Fans are worried sick. In the fanfic, they could show the backstage chaos as his bandmates try to figure out what to do while the fans outside are praying for his quick recovery. Maybe a young fan writes a letter to him expressing her concerns and how his music has inspired her, and this letter somehow reaches him in the hospital, giving him the strength to recover faster.
Fanfiction.net is also a great place to look for BtoB Sungjae fanfics. It has been around for a long time and has a wide range of stories written by fans all over the world. Just use the search function and type in 'BtoB Sungjae' to find relevant fanfics.
Well, there's a fanfic called 'The Sungjae I Know'. It shows a different side of Sungjae, his struggles and how he overcomes them. It's really inspiring. Also, 'Sungjae and the Magic Melody' is quite interesting. In this fanfic, Sungjae has a magical encounter that changes his life in unexpected ways.
A popular fanfic is 'Side by Side'. This fanfic focuses on the behind - the - scenes of BTOB's activities. It shows Minhyuk and Sungjae's relationship in different situations, like during rehearsals, on tour, and during their free time. It gives a very realistic view of their friendship and the love they have for their group and each other.
If there's a fanfic about Sungjae being injured, it can make the fandom more united. Fans will come together to express their love and concern for him. They might create fan art or write more fanfics to show their support.
The main differences might be in the details of the art and some storylines. Sometimes, adaptations can simplify or tweak parts for better flow or to fit the medium.
The connection is quite loose. Area no Kishi manga exists on its own, and Manga Rock is a place that might host it, but there's no inherent connection in terms of creation or content.