One night you're gushing over rom-coms and Jungkook's cooking; a few nights later you're tending to his beat-up face. But while it's his stubbornness that's saved you countless times before, it's that same quality that constantly puts him in danger. OR your best friend just can't let go of underground fighting and so, drama ensues. -- genre/tags: angst, fluff, smut; best friends au, slow burn; underground fighter!JK -- jungkook x (f.) reader, side jin x reader -- warnings: depictions of blood and violence (involving JK), implied depression/anxiety, unhealthy coping mechanisms, foul language, family problems, sexual content, mentions of alcohol, mention of a robbery (18+)