What Common Conflicts Appear In Demon Slayer Obanai And Mitsuri Fanfiction Plots?

Okay, so I've been in the KNY fandom for a while and honestly? The emotional core for these two is pretty obvious to me. It's all about that push-pull of feeling ‘unworthy’ of love, just from opposite sides. Obanai thinks he's a monster because of his face and his past, and Mitsuri struggles with thinking she's too much—too loud, too strong, too hungry, too emotional. Most fics I read play with that beautifully. They have these massive internal barriers that keep them from just accepting the other's affection, even when it's right there. A lot of plots revolve around one of them overhearing something self-deprecating from the other and just going ‘absolutely not, we are fixing this right now.’ Or it's about them trying to hide their perceived flaws and the other person just... not seeing them as flaws at all. It's that classic ‘I love every part of you that you hate’ dynamic, and it never gets old because their specific insecurities are so vividly drawn in the manga. You really feel why they'd be afraid to reach out.

Oof, this pairing always has the same two or three engines driving the drama, doesn’t it? The most glaring one is just pure character incompatibility. Obanai is canonically abrasive, secretive, and laser-focused on Mitsuri. Tanjiro is sunshine incarnate, emotionally open, and devoted to Nezuko. So a lot of fics have to warp one of them to even get them in a room together romantically. The classic is the 'forced proximity' trope—they get stuck on a mission together, maybe in the Swordsmith Village or some isolated mountain post, and Obanai’s bitter exterior slowly cracks under Tanjiro’s relentless kindness. It’s a slow burn that hinges on Obanai learning to trust, which is a massive hurdle given his backstory. Then there’s the 'what if' scenarios that change canon events. What if Mitsuri never reciprocated Obanai’s feelings, or what if she fell in battle? These fics explore Obanai’s grief and loneliness, with Tanjiro becoming an unexpected source of comfort. The conflict is all about guilt and moving on, with Obanai wrestling with the idea of 'betraying' Mitsuri’s memory. It’ help. A more niche plot I’ve seen plays with the demon-slaying hierarchy. Tanjiro, as a bearer of the Hanafuda earrings, carries a legacy Obanai might resent or feel competitive towards. Fics sometimes pit Obanai’s strict adherence to the Pillar code against Tanjiro’s more compassionate, rule-bending approach. The tension isn’t just personal; it’s ideological. Will Obanai’s rigid worldview soften, or will Tanjiro’s idealism be challenged? It can get pretty philosophical, which is fun when done right, but it’s a tricky balance to strike without making Obanai seem like a total jerk.

I’ve read a bunch of Obanai/Mitsuri fics lately, and what strikes me is how many writers fill in the gaps left by canon. In the manga, their relationship is mostly told through backstory and small moments, so fanfiction becomes this playground for exploring what their daily life would actually look like after the final battle. You see a lot of fics where Obanai’s possessive protectiveness softens into something quieter and more domestic, but without losing that intense focus he always had on her. Mitsuri’s cheerfulness is often written not as naivete but as a deliberate strength that helps him heal. A recurring theme I’ve noticed is the handling of his scars and her insecurity about her own strength. There’s this lovely tension where they’re both trying to reassure each other, each thinking the other is the more remarkable one. I’m less convinced by stories that make them overly saccharine, though. The best ones remember Obanai’s sharp tongue and Mitsuri’s occasional moments of sadness—it feels more real when their happiness is hard-won, not just a given. I stumbled on a fic last week that had them quietly bickering over how to tend a garden, and the affection was all in the subtext, which somehow felt truer to their characters than any grand confession scene.

Anyone else notice how the 'found family' thing gets blended with their dynamic a lot? Not just them becoming a couple, but Mitsuri slowly integrating into the Serpent Hashira's weird, isolated world. Fics where she insists on feeding his snake Kaburamaru little treats, or drags him out to festivals he'd normally avoid, feel really true to their characters. It's softer than a lot of KNY pairings because the conflict isn't about power imbalances or rivalry; it's about two people with different flavors of loneliness finding something warm. There's also this recurring beat where Obanai's jealousy gets reframed. Instead of being toxic, it's shown as anxiety—he's so convinced he's unworthy that any attention she gets from others feels like a threat to the fragile connection. Mitsuri's sunshine personality isn't treated as naive in the good fics, either. She understands his fragility and chooses to be gentle with it, which flips the 'manic pixie dream girl' trope on its head. And the bandages. So many fics use the bandages as this intimate barrier. The moment he lets her see his face, or she helps him rewrap them after a fight, carries so much weight. It's less about the physical reveal and more about the trust. That specific detail creates a built-in slow burn that a lot of writers handle really well. My personal favorites are the post-canon fix-its that give them the quiet life they deserved, maybe running a small shop together where Obanai works in the back and Mitsuri charms the customers upfront. Feels like a warm blanket after that brutal ending.

Any story that puts Mitsuri and Tengen together tends to run into a few classic friction points, and honestly, a lot of them revolve around how profoundly different their core philosophies are. On one hand, you've got Mitsuri, whose entire drive is this deep-seated, romanticized desire to be loved and to love others in a very traditional, emotionally vulnerable way. Tengen, meanwhile, operates on a whole different frequency—his concept of 'flashiness' and performative strength often reads as egotistical or emotionally closed-off to someone seeking genuine connection. That disconnect is fertile ground for conflict, whether it's Mitsuri misinterpreting his grand gestures as hollow showmanship, or Tengen completely failing to grasp why his pragmatic, battle-focused worldview leaves her feeling unseen. A lot of writers also latch onto their physical disparity, but not just in the 'big guy, petite girl' way. It's more about how Tengen, with his enhanced senses from being a Sound Hashira, might be literally overwhelmed by the sheer intensity of Mitsuri's emotions—her heartbeat, her breathing when she's flustered. That could lead to misunderstandings where he retreats because the sensory input is too much, and she reads it as rejection. The post-'Mugen Train' era adds another layer; Tengen's retirement and injuries could clash with Mitsuri's active duty and her own survivor's guilt, creating tensions about purpose and protection. I've seen a few fics where she pushes him to be more emotionally available, and he pushes her to be more strategically ruthless, and they both have to figure out if meeting in the middle means compromising who they are. Honestly, the most interesting conflicts I've read aren't the big, dramatic battles, but the quiet ones. A story where Tengen tries to compliment Mitsuri by calling her 'flashy' in his own lingo, and she just bursts into tears because it doesn't sound like 'love' to her. Or where Mitsuri's relentless optimism grates on Tengen's more cynical, veteran perspective after a tough mission. It's that gap between their love languages—hers all words of affirmation and quality time, his possibly being acts of service and, well, literal flashy gifts—that really makes the narratives spark, sometimes with genuine hurt before they find a resolution.

Mitsuri and Tengen’s dynamic in fanfiction clicks for me because they’re both these flamboyant extremes within a world of stoic heroes, yet their extremes pull in opposite directions. He’s performative, loud, all about flash and excess; she’s emotive, warm, and craving a more traditional romantic connection. The conflict writes itself—it’s the tension between his seemingly superficial, hedonistic lifestyle and her deep-seated need for sincere, devoted affection. I’ve read fics where Tengen’s whole ‘flamboyant’ persona is a shield, and Mitsuri is the one who sees through it because her own kindness is so disarming. That creates this lovely push-and-pull. He might initially treat her like another ‘flashy’ acquisition, while she’s trying to figure out if his compliments are real or just part of the act. The journey from that mismatch to genuine understanding is where the real heart is. It’s not just ‘will they or won’t they,’ it’s ‘can these two very different languages of love ever translate properly?’ Plus, their shared status as Hashira adds another layer—professional respect mixed with personal curiosity. You get training scenes, missions gone wrong, the whole ‘saving each other’s lives’ trope, all while navigating this fundamental misunderstanding about what love even looks like. That’ Edith keeps me coming back.