How Does Ash And Eiji Fanfiction Explore Complex Friendship Dynamics?

I look for fics that tackle the aftermath. The anime ends with a... well, a certain void. So much of the fanfiction is about filling that void with a living friendship, which is a huge challenge. How do you move forward from that intensity? Writers explore Eiji's survivor's guilt, or an Ash who did survive but has to learn how to be a person, not a weapon, with Eiji as his guide. The complexity is in the daily effort, the setbacks, the moments where they trigger each other's trauma without meaning to. It's messy and slow, which feels true to a real, deep friendship forged in fire.

It's fascinating how fanfiction uses side characters to reflect on their bond. Like, Max or Shorter observing them and having their own interpretations. Those outsider POV fics highlight the complexity because the observers are often confused or awed by what they see. Is it devotion? Obsession? Love? They can't pin it down, which mirrors the reader's own experience. The friendship is so specific it defies easy labels, and fanfiction thrives in that undefined space, trying on different angles through other characters' eyes to see what fits.

I’ve read a lot of 'Banana Fish' fics, and what strikes me about Ash and Eiji stuff is how rarely it goes straight to romance. A huge chunk of the fics I’ve saved are pre-slash or gen, and they’re all about the space between them. The show gives us this intense, life-or-death bond, but it’s deliberately ambiguous. So fanfiction becomes this lab for dissecting that ambiguity. Does Eiji’s calm pull Ash back from the edge because it’s pure, or because it’s something Ash has never had before and he’s almost addicted to its stability? Is Ash’s protectiveness a product of his trauma, or is it a choice he makes for someone he genuinely values differently?

Writers love to put them in mundane situations—cooking, grocery shopping, dealing with a cold—because it highlights the weird normalcy they could never have. Seeing Ash, who’s a tactical genius and a survivor, fumble with a microwave for Eiji’s sake says more about his devotion than a thousand action scenes. Conversely, exploring Eiji’s quiet anger or his moments of fear, the parts the anime only hints at, gives their friendship a weight that feels earned. The best fics make you feel the cost of that bond for both of them; it’s never easy, and it shouldn’t be.

That complexity is why I often prefer gen fics for them. Romance can sometimes simplify things into ‘they’re in love,’ but friendship, especially this friendship, is a tangled web of rescue, mutual damage, healing, and unspoken understanding. You can write a whole fic just about the act of translating, or about Eiji learning to shoot not to be like Ash, but to understand him, and it feels massive.

Honestly, sometimes I think the fandom overcomplicates it. The core of their dynamic isn't that mysterious: it's two people from utterly different worlds who see something true in each other. The fanfiction that resonates with me cuts through the trauma porn and just shows them being weirdly comfortable together. Like, Ash letting his guard down enough to fall asleep on Eiji's shoulder, or Eiji making a dumb joke that actually gets a real laugh out of Ash. That's the complex part—the vulnerability, not the drama.

A lot of authors get caught up in writing Ash as this broken bird who needs fixing, and Eiji as the saintly caretaker. That flattens them both. The more interesting fics flip it or muddy it. What about Eiji's loneliness in New York, his dependence on Ash for purpose? What about Ash being the more emotionally perceptive one in certain moments? Exploring that imbalance, where the 'strong' one isn't always strong, and the 'soft' one has a spine of steel, is where the friendship feels real. It's less about analyzing the bond and more about letting them inhabit a room together, with all their quiet weirdness.