Welcome to the Underground: What is Tōhai?#
If you are looking for a high-stakes, psychological thrill ride, Tōhai - Ura Rate Mahjong Tōhairoku might be exactly what you need. The story follows Kei, a high school student known in the underworld as the “K of Ice.” Kei navigates the dangerous waters of underground mahjong parlors where the stakes go far beyond mere currency—money, women, and even organs are on the line. With his cold-hearted strategy and stylish gameplay, Kei is a force to be reckoned with, though he carries a mysterious personal life, with rumors of a girl kept at his home.
If you want to start streaming the tension for yourself, you can watch the anime on Prime Video (available via Crunchyroll in some regions).
Is the Anime Really Finished?#
When asking “Is the anime finished?”, the answer depends on what you mean by “finished.” The anime adaptation premiered in October 2024 and was revealed to have a continuous half-year run. While this provides a significant amount of content, those looking for a complete and satisfying conclusion to the overarching saga will likely find the anime is only the beginning.
Based on the source material, the story extends far beyond the initial run. The original manga has multiple sequels, including Hitobashira-hen, Minagoroshi-hen, and Cold Girl. If you find yourself hooked on the “K of Ice” and want to see the full trajectory of his journey, you will need to continue with the written source material. You can buy the Tōhai manga here to get the full story.
Who Should Watch Tōhai?#
This series is best suited for viewers who enjoy the Drama and Tournament genres. It is not just about the game of mahjong; it is about the psychological warfare and the desperation of people trapped in underground gambling.
The appeal of Tōhai lies in:
- High Stakes: The inclusion of organ gambling and life-altering debts adds a dark, gritty edge to the proceedings.
- Cold Protagonist: The “K of Ice” archetype appeals to those who love calculating, strategic lead characters.
- Atmosphere: The underground parlor setting creates a sense of claustrophobia and danger.
If you enjoy these kinds of high-tension narratives, we’d love it if you could support our site on Ko-fi to help us keep investigating more series!
Recommended Watch and Read Order#
Navigating the Tōhai universe can be complex due to the various sequels and spin-offs. To make it easier, we recommend checking the relationship tree provided below this article. Here are the best paths depending on your goals:
The “Anime-First” Order#
For those who prefer animation, simply start with the Tohai: Ura Rate Mahjong Tohai Roku anime. This is the most accessible entry point into the world of underground mahjong.
The Completionist Order#
If you want every single detail, including the spin-offs, we recommend following the manga’s chronological release. Start with the original Tōhai manga, move through the sequels (Hitobashira-hen, Minagoroshi-hen, and Cold Girl), and don’t forget the Haō Densetsu Lion and Haō Kessen Lion spin-off series.
The “Hybrid” Path#
If you don’t mind mixing mediums, watch the anime first to get a feel for the characters and the world. Once the anime concludes, refer to the relationship tree to see where the anime ends and pick up the manga from that point to finish the story.
Final Tips for Fans#
Whether you are a mahjong expert or have never seen a tile in your life, the drama of Tōhai is universal. For those who want to immerse themselves further in the series, you can buy official Tōhai merchandise here to show your support for the franchise.
Tōhai - Ura Rate Mahjong Tōhairoku • manga • 2006-06-27 to 2011-04-12 (serialized in <i>Young Champion</i>)
└─(sequel)→ Tōhai: Hitobashira-hen • manga • 2011-05-10 to 2017-05-23 (Young Champion, 2011 #11 - 2017 #12)
└─(sequel)→ Tōhai: Minagoroshi-hen • manga • 2017-09-26 to 2021-06-08 (Young Champion, 2017 #20 - 2021 #13)
└─(sequel)→ Tōhai: Cold Girl • manga • 2021-09-28 (serialized in Young Champion, 2021 #20)
└─(spinoff)→ Haō Densetsu Lion • manga • 2010-05-08 to 2013-05-08 (serialized in Kindai Mahjong Original)
└─(sequel)→ Haō Kessen Lion • manga • 2015-06-15 to 2017-04-15 (Kindai Mahjong, 2015 7/15 - 2017 5/15 iss)
└─(adaptation)→ Tohai: Ura Rate Mahjong Tohai Roku • anime • 2024-10-04
