History Manga / CMB

%% * [[HasTwoMommies Has Three Daddies]]: All daddies are [[OldMaster C.M.B. Magis]], to boot.

* CheerfulChild: Shinra.

* EastIndies: Like his cousin, Shinra and Nanase went to Bali. And it's presented as a kind of traditional place with witch doctors. Which is not really far from TruthInTelevision, if you know where to go. Of course, the case have something to do with Leyak, the local demon.
* EncyclopaedicKnowledge: Shinra. In fact, the encyclopaedia might as well as written by Shinra.

* [[HasTwoMommies Has Three Daddies]]: All daddies are [[OldMaster C.M.B. Magis]], to boot.

** Nanase also wiped out a Hongkong man's (implied to be The {{Triad}}) bodyguard when the man they escort tried to extort Shinra out of a charm he just got.

** My God, even for a kid, Shinra is 'out' there, although not as weird as his cousin Sou. It's implied that it's because of his life in solitude, and he is getting better after interacting with people around his highschool and Nanase's family.

** Conversely, Nanase is one to Kana. While both are [[ActionGirl Action Girls]] in their own rights, Kana prefers fighting with weapon as her school's UsefulNotes/{{Kendo}} Club Ace, while Nanase is adept in barehanded fighting as the local UsefulNotes/{{Aikido}} Dojo Ace. Kana is also a daughter of a middle-class household that often feels amazed with the upper class treatment given by Sou's friends and acquiantances, while Nanase is a granddaughter of a local upper-class family whose parents decided to live as a middle-class family by operating a public bathroom.

* MushroomSamba: This trope is revealed to be the reason how several researcher reported an ancient, moving wooden minotaur statue: it was used to farm hallucinogens mushroom, and they accidentaly ingested it.
* NeverMyFault: In 'Sports Ground', the school baseball coach does this. When the baseball team isn't doing so well despite having their star baseball player, the coach, who was having his final year before retiring, decides to force the baseball team to quit using 21st Century rule so that he could get into a famous baseball team to the point making them destroy the school baseball field by making it too muddy to play. When Shinra and Nanase, who heard their story, suggest to report regarding the matter, they worried that the coach would pulled the trope above and lies that the team did it on their own. Sure enough, after tricking him into reaccepting everyone in the baseball club, he did that but was futile when Shinra provides evidence. The principal fires the coach for his own greed and promise him that he'll find a successor to him.

--> '''Nanase''': [[HypocriticalHumor It means I never act aggresive!]]

* AlwaysMurder: DownplayedTrope. This manga is more about archaeological work than crime-solving work, but Shinra has seen his share of murder because of said archaeological works.

* AchievementInIgnorance: Nanase managed to make a human-powered airplane fly with her strength, [[BeyondTheImpossible despite that it is not aerodynamically feasible for said airplane to fly]]. They crash immediately after Shinra point it out.

* GravityIsAHarshMistress: The Gravitational Cognizance variant, as pointed in the [[AchievmentInIgnorance]] entry above. The flying, albeit non-aerodynamic Nanase-powered plane fell after Shinra completely pointed out the flaw of the plane.

* {{Foil}}: Shinra is one to his cousin, [[Manga/{{QED}} Sou Touma]]. While both has similar approach to solve a problem, and similar high, if fair, esteem in their skills, Shinra is a [[{{Keet}} happy-go-lucky boy]] that have no problem openly expressing his views, while Sou is [[TheSpock more level-headed]] and prefers the subtle, yet pointed approach when communicating his thoughts (when he decides to do so anyway).
** Conversely, Nanase is one to Kana. While both is [[ActionGirl ActionGirl]] in their own rights, Kana prefers fighting with weapon as her school's UsefulNotes/{{Kendo}} Club Ace, while Nanase is adept in barehanded fighting as the local UsefulNotes/{{Aikido}} Dojo Ace. Kana is also a daughter of a middle-class household that often feels amazed with the upper class treatment given by Sou's friends and acquiantances, while Nanase is a granddaughter of a local upper-class family whose parents decided to live as a middle-class family by operating a public bathroom.

* LikeBrotherAndSister: Shinra is like Tatsuki's little brother, yet everyone always ask if he's her boyfriend.

Created by Motohiro Kato, creator of ''Manga/{{QED}}'', ''C.M.B'' is about TeenGenius Shinra Sakaki solving cases mostly revolving on history, archeological work, and his relationship with his newfound classmates. Like his cousin Touma in ''Q.E.D'', he is often accompanied with an ActionGirl, Nanase Tatsuki, who helped him got into a normal school.

--> '''Nanase''': [[HypocriticalHumor It means I'm never act aggresive!]]