The prequel for the ''LiarGame'', written and illustrated by the same Kaitani Shinobu. Actually, only two chapters (the opening one and the new one-shot ''Liar Game: Roots Of A #2'') deal with Akiyama's backstory; the others are a two-shot that deals with a fortuneteller and the rest are simple one-shot chapters. The non-Akiyama stories are not part of the main ''LiarGame'' story.

Akiyama's chapter revolve around him and a few other classmates (all of them top of the class) at Teito University trying to complete an assignment for Professor Yukiya Okabe's criminal psychology class. They need to create a detective profile for a person based on their letter that Professor Okabe found. With such limited information, this profile needs to be complete, accurate, and correct, unless the students want to be forced spending their summer attending his lectures...

The other stories deal with the fortuneteller Asuka Kiryu, while the rest involve CoolLoser Minoru Shibura whose only redeeming talent is skill with darts and his struggle with the staff at Green Mountain Starlight Park, a DatingServiceDisaster episode, and even a chapter for the author's dog.

!!''LiarGameRootsOfA'' provides examples of the following tropes:
* BatmanGambit: [[spoiler: Minoru makes a deal with the director to free a patient (Kyo Kisaragi) if he can beat everyone in the facility at darts.]]
* BusFullOfInnocents
* CoolLoser: Minoru
* ContemplateOurNavels: Minoru
* DidntSeeThatComing: Type 3 for [[spoiler: Daisuke Hanamura. Hard to blame him...he was defeated by the fortuneteller he met earlier. How was he supposed to know that it was the legendary fortuneteller who practiced ancient divination?]]
* {{Fanservice}}: [[http://www.onemanga.com/Liar_Game_-_Roots_of_A/2/02/ This]] overlaps with FetishFuel.
* {{Fortuneteller}}: Asuka Kiryu
* LikeRealityUnlessNoted: If we are to assume the one shot chapters take place in the LiarGame world, then this trope applies.
* MatchMakerDotCom: @Lovers
* [[spoiler: OutrunTheFireball]]
** [[spoiler: Subverted since Asuka adjusted the hijacker's clock 18 minutes early; no explosion at all.]]
* PsychologistTeacher (in name only) Professor Yukiya Okabe
* [[spoiler: RousingSpeech: Minoru gives quite a nice one for the patients, and it leads into a CrowningMomentOfHeartwarming.]]
* ThirteenIsUnlucky: Kyo is patient 13. [[spoiler: He also wins several games of darts with 13 throws, and subverts this trope since he and Minoru inspire the other patients.]]
* [[spoiler: TimeBomb]]
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