Kirishima X Denki Novels & Stories

Oh, I've seen some wild plots for these two! The classic is always the 'Roommates to Lovers' scenario where Denki accidentally short-circuits the whole apartment building during a storm and Kirishima has to help him deal with the aftermath and the electric company. It writes itself.

A plot I wish I saw more is a fantasy AU where Kirishima's hardening is reimagined as dragon-scale armor and Denki is a lightning mage with terrible control. Their dynamic of sturdy protector versus chaotic, self-damaging power source just fits so perfectly in a medieval setting. You could have a whole quest where Denki's magic is needed but he keeps injuring himself with backlash, and Kirishima's the only one who can physically withstand being near him to help channel it.

The one that really got me hooked recently was a simple coffee shop AU where Kirishima works there and Denki is a regular who always orders the most complicated, sugary drink. The slow realization that Kirishima memorizes his order and starts having it ready, and Denki starts coming in just to see him, felt so warm and genuine.

Kirishima and Denki are usually portrayed as a super chill, fun-loving pair, so the conflicts tend to be on the softer side. A lot of writers like to play with Denki's low-key anxiety about not being "manly" enough compared to Kirishima's whole deal. It creates this quiet, sad tension where Kirishima's just trying to hype him up, but Denki can't see himself that way. That insecurity can spiral into him pulling away, thinking he's holding Kirishima back from someone better.

Another super common one is just simple miscommunication. They're both kinda dumb in an endearing way, so one will overhear half a conversation or misinterpret a joke, and instead of talking it out, they'll just get weird and awkward for chapters. The resolution is always a big, cuddly talk where they both admit they were being idiots. It's predictable, but honestly, that's why I read it—it's cozy.

Sometimes you get the external pressure angle, where Class 1-A is placing bets or Mina is being a little too intense about setting them up, and it makes the whole thing feel performative. That forces them to figure out if they're actually into each other or just going along with the friend group's narrative. It's less about big drama and more about the quiet realization of real feelings under all the noise.

Searching for fics with that specific ship but across different universes can be tricky because most tagging systems aren't built for pairing+crossover combos. My method involves hunting on AO3 using the 'Kirishima Eijirou/Kaminari Denki' relationship tag as a base, then manually sorting through the 'Fandom' filters. You'll find a surprising amount in 'My Hero Academia' crossovers with 'Marvel' or 'Avengers' where they get portaled into a new world—those often keep the ship dynamics intact while exploring the new setting.

Another spot I've had luck is on Tumblr, but it's more of a deep dive. Bloggers sometimes recc niche crossovers that never make it to the big archives. The real challenge is that a lot of crossover content is buried in larger fandom-specific collections, so you might have to wade through a lot of gen fic to find the good shippy bits. I once spent an afternoon following a rec list from a Discord server and found this wild 'MHA'/'Fast & Furious' fusion that actually worked.