honestly, the most emotionally resonant stories are the ones that remember he's not just 'the hot, sad bat boy.' He's a trauma survivor who communicates through shadows and actions, not words. A reader insert that actually works has to navigate that. It’s less about grand romantic declarations and more about the quiet moments—the way he might use a shadow to brush a tear from your cheek because he can't bring himself to touch you yet, or how he notices the exact brand of tea you like and has it waiting. The depth comes from patience, from earning his trust stitch by stitch, and showing his vulnerability through his protectiveness, not through him suddenly becoming chatty. The best fics I've read make the reader character have their own weight, their own scars, so the connection feels like two broken pieces finding a fit, not a perfect person fixing a broken one.
Some writers try to shortcut it with mate bonds or instant connection, and it just feels shallow. The real ache is in the hesitation, the missteps, the shadows recoiling when he feels unworthy, and the reader character learning to read his silent language. That slow, painful building of something real—that’s where the emotional payoff lives, in my opinion. It’s exhausting to write, but so worth it when done right.