Which Twice Fanfiction Genres Are Most Popular Among Fans?

Fluff and college AUs, no contest. They're easy to read, give that warm feeling, and let you project familiar life onto the members. Most readers just want a sweet escape. The angsty or supernatural stuff exists, but it's a smaller pool. The big numbers are always in the happy, everyday AUs.

From my reading, the popularity really depends on which platform you're on. On AO3, the most kudosed and bookmarked fics are overwhelmingly the slow-burn romance AUs, especially for the big ships like 2yeon or SaMo. The tags 'Fluff', 'Alternate Universe - College', and 'Mutual Pining' are absolutely packed. Over on Twitter or shorter platforms, you see more drabbles, headcanons, and quick domestic snippets—still fluff, but in bite-sized pieces. The angsty, plot-heavy fics tend to live on AO3, while the cute, immediate comfort stuff circulates as threads. I also notice a lot of hybrid genres, like 'Hurt/Comfort' mixed into a coffee shop AU; pure genres are less common now.

I actually disagree a bit with the emphasis on AUs. In my corner of the fandom, the most discussed and passionately argued-over fics are the 'canon-compliant' or 'canon-adjacent' ones. They're harder to write well, but when they land, they feel so much more impactful. The ones that extrapolate a real-life moment from a VLive or a concert interaction into a deeper emotional story. The 'Behind the Scenes' tag might not have the volume of College AUs, but the comments sections are way more intense. People love analyzing the real group dynamics and imagining the private conversations we never see. I think that genre's popularity is underestimated because it's a quieter, more reflective readership, but they're out there. Fluff is still a giant, of course, but for me, the canon-inspired stories that treat the members as complex people in a high-pressure job are the ones that stick with me long after I finish reading.

Honestly, I've been scrolling through AO3 for the Twice tag for years, and it's fascinating how trends shift. A few years ago, modern AUs were huge, especially the 'idol life' fics that tried to be realistic about the trainee system or backstage dynamics. But lately? The 'College/University AU' has absolutely taken over. It feels like half the new fics are some variation of Mina as an aloof art student or Jihyo as a stressed-out team leader in a group project. They're popular because they're so relatable, I guess, letting fans imagine the members in everyday, messy situations with crushes and exams instead of music shows.

That said, I think the most consistently huge genre is and always has been the Fluff/Slice of Life category. People come to fanfiction for comfort, and there's an endless appetite for soft, domestic moments between the ships. Whether it's established relationship fluff or just friends being cute, those tags are constantly updated. The 'Hurt/Comfort' fics that go with them are also massive, often featuring a member being sick or sad and another taking care of them. It taps into that protective, caring instinct fans have.

A weirdly specific niche that has a dedicated following is the 'Supernatural AU'. Not just vampires, but stuff like soulmate marks, fantasy settings, or even mundane jobs with a magical twist. The Sana x Momo fandom seems to love turning them into rival witches or fae creatures. It's not the most popular by numbers, but the readers it has are rabid. They devour every update in those tags. Meanwhile, the 'Angst' genre is a slow burner; not as many fics, but the ones that are good get legendary status and are recced for years.