One common theme is temptation. Just like in the song, many fanfics explore the idea of being lured by something, whether it's power, love, or a hidden desire. Another theme is self - discovery. The members often go through a journey of understanding themselves better in relation to the intense emotions of blood, sweat, and tears.
The story behind the MV seems to explore themes of inner conflict and the pursuit of self-identity. There are lots of visual cues and symbolic imagery that add depth to it.
Sure. One popular 'BTS Blood Sweat and Tears' fanfic is 'The Temptation Within'. It delves deep into the concept of the song, exploring the members' internal struggles in a very creative way. Another great one is 'Hidden Desires' which focuses on the darker, more mysterious aspects of the Blood Sweat and Tears era.
They usually incorporate the aesthetics and mood of the original work. The dark, alluring, and somewhat mysterious atmosphere of 'blood sweat and tears' is often carried over into the fanfiction. For example, the settings might be described in a way that gives off the same sense of enigma as in the original. Also, the characterizations are typically based on the original personas but may be expanded upon. The fanfic authors might give more backstory or show different sides of the characters that were only hinted at in the original.
There's also a fanfiction called 'Beyond the Lyrics' which takes the themes from 'blood sweat and tears' and creates a whole new adventure for the characters. It's really good at exploring the emotional depth of the characters in a different setting. The author does a great job of staying true to the essence of the original work while adding their own creative twists.