Tokyo Ravens (東京レイヴンズ, Tōkyō Reivunzu) is a Japanese light novel series written by Kōhei Azano and illustrated by Sumihei.

However, the ritual goes horribly wrong and the result of this becomes what is now known as the "Great Spiritual Disaster", an incident which haunts the entire Japanese continent to date.

In addition to this, the Onmyo Agency was established to monitor supernatural activity in the area and to combat any spirits or demons that would make their way into the real world.

But he does remember the fact about him making a promise with his engaged childhood friend Natsume, the Tsuchimikado's family heir and Yakou's supposed reincarnation.

But when a group of people from the Onmyo Agency attempt to recreate the same tragedy that led to Japan's downfall two years ago, he decides to take matters into his own hands by fighting alongside Natsume as her shikigami (supporter).

Tokyo Ravens began as a series of light novels by Kōhei Azano, author of Black Blood Brothers, with illustrations by Sumihei; 16 volumes have been released as of October 2018.

The sixth and the latest series, Tokyo Ravens AnotherXHoliday started in Kadokawa's shojo magazine Millefeui in the February 2014 issue.

In Anime News Network's Fall 2013 Anime Preview Guide, reviewers Rebecca Silverman and Theron Martin gave the series an initial rating of 2 out of 5 stars, while reviewers Carlo Santos and Carl Kimlinger gave the series an initial rating of 2.5 out of 5 stars.

[35] Martin commented that "the artistic effort is wholly unimpressive beyond the yukata that Hokuto wears and the CG creations stand out too starkly against the regular animation.

Only some decent early character development saves this one from the garbage pile,"[36] while Santos gave a slightly more positive review, stating that "Tokyo Ravens is nothing special, but it isn't horrible, either.