Japan web novel trends
Every morning we tally the weekly rankings of Shōsetsuka ni Narō and Kakuyomu, Japan's two largest web novel sites: which genres lead, which tropes in titles are rising or fading, and which works just broke into the top 100.
AI story writer from Japan
Write your novel with AI – and see what Japan is reading this week
BunCho is a Japanese AI writing service for novelists. It brings together a long-form AI writing studio, free idea generators, and a weekly data report on Japan's web novel rankings.
BunCho is an AI novel-writing service from Japan, running since 2020. The writing tools themselves currently work in Japanese; these pages explain what they do in your language.
What you can do here
Free title & synopsis generators
Stuck on a title or a back-cover blurb? Our free generators turn a genre and a few keywords into options in seconds. They currently write in Japanese — useful for Japanese learners, translators and fans of light novel naming.
Who it is for
- Writers drafting a long web novel or light novel who want an AI partner that never edits behind their back.
- Readers and translators who follow isekai, villainess and romance-fantasy trends straight from the Japanese rankings.
- Publishers, scouts and researchers who need a consistent weekly snapshot of what is climbing on Narō and Kakuyomu.
Why a Japanese AI writing tool?
Japanese web fiction is one of the largest pipelines of new stories in the world: popular series on Narō and Kakuyomu regularly become light novels, manga and anime. BunCho has been building writing tools for that community since 2020.
The studio keeps you in control: the AI suggests, you decide. Nothing is written into your manuscript until you press apply, and every accepted change is saved as a version you can roll back.
Questions
- Is this the same service as the Japanese BunCho?
- Yes. These pages are the international entrance to the same service at bun-cho.work. Accounts, plans and works are shared.
- Can I write in English?
- The studio's menus and the free generators are in Japanese for now. Localized versions are planned; until then, these pages describe each feature in your language.
- Is it free?
- The title and synopsis generators are free. The AI Writing Studio is included in the paid plans and comes with a 7-day free trial for first-time subscribers.