Mentioning that Bakugou once called Deku 'the worst'? That's the foundation. A lot of fanworks zero in on that specific, brutal honesty as the emotional core. The dynamic isn't just rivalry; it's a history where one person saw the absolute worst, most powerless version of the other and formed their entire worldview around that image. The ship grapples with Bakugou having to dismantle that image piece by piece, long after Deku has surpassed him.
It's the physicality of their relationship that gets me. They're always fighting, but in later arcs, it's a form of communication—desperate, violent, but weirdly intimate. Fanfiction that leans into the ship often amplifies this, turning their brutal sparring sessions into something charged with unspoken tension. The anger isn't one-sided hate; it's layered with a grudging respect that borders on obsession, and that's fertile ground for romantic reinterpretation.
The most compelling fics for me are the ones that don't soften Bakugou too much. He's still abrasive and explosive, but his actions become a twisted love language—pushing Deku to be better because the idea of anyone else being the one to defeat him is intolerable. It’s possessive, problematic, and absolutely fascinating to read when handled with nuance.