The Vampire Haechan concept is one of those fan-created ideas that just took on a life of its own, and honestly, it’s fascinating how organic these things can be. It started popping up around 2020–2021 within NCT’s fandom, particularly among fans of Haechan’s stage persona. His playful yet slightly mischievous vibe, combined with those sharp visuals—dark hair, intense expressions, and that smirk—just fit the 'vampire' aesthetic perfectly. Fans began drawing parallels to classic vampire tropes: charismatic, alluring, and a little dangerous. Fan art and edits really fueled it, with artists exaggerating his feline eyes or adding fangs to his smile. It wasn’t something SM Entertainment officially pushed; it was purely a grassroots fandom thing, which makes it even cooler.
What’s interesting is how the concept evolved beyond visuals. Fans started tying it to his performances, like how he dominates stages with this hypnotic energy—almost like he’s 'sucking the life' out of the audience (in the best way). Even his vocal tone, especially in darker NCT tracks like 'Baby Don’t Stop,' added to the vibe. The fandom ran with it, creating memes, AU fanfics, and even vampire-themed birthday projects. It’s a testament to how fans can shape a narrative around an idol’s image without any corporate input. And honestly? It suits him so well that even non-fans sometimes reference it now.