[[quoteright:305:http://static.tvtropes.org/pmwiki/pub/images/switch_volume_5604.gif]]
[[caption-width-right:305:SWITCH II, Volume 01]]

This manga follows two rookie members of the Narcotic Control Department, Eto Kai and Kurabayashi Hal. In their line of work they must combat and bust drug dealers, gangs, and crime syndicates, particularly the notorious Ryugen. At first glance, Kai seems like a typical, happy young man, but when in danger his personality becomes violent and unstoppable. As Hal struggles to keep Kai in check, clues about Kai's past begin to surface, and he begins to wonder whether his violent mood swings may have something to do with the mysterious events that occurred sixteen years prior.
----
!!Examples:
* ActionGirl: Kuroda
* BerserkButton: Don't hurt innocents in front of Kai, and don't you even dare harm Hal
* BewareTheNiceOnes: Kai
* BoobsOfSteel: Kuroda
* BreakTheCutie
* BusmansHoliday: At one point Kai goes on vacation and on a date with Mari. He ends up getting dragged into another force's drug investigation.
* TheCharmer: Hal and Hiki. Hal in particular flirts with everyone and is a constant source of HoYay.
* TheChessmaster: Hiki
* ChickMagnet: Hal of course.
** Mari is a genderfipped version. As a UnkemptBeauty StatuesqueStunner she attracts men every she goes. Sometimes its good, sometimes not so much
* CrouchingMoronHiddenBadass: Kai. Usually a goofy guy, almost a {{Cloudcuckoolander}} until [[SplitPersonality you piss him off.]]
* CuteLittleFangs: Miyoshi
* CutenessProximity: Kuzui Mari is quite irrational where Kai is involved. Odd because she's normally pretty collected and cool.
* DamselInDistress: Subverted.
* DarkAndTroubledPast: Everywhere. It seems that the force is a DysfunctionJunction
* DestroyTheEvidence: [[spoiler:Ren Kousaka and Toki Kurabayashi destroyed every document about SWITCH but they did not expect Kai to come by when they were burning everything. Ren told his son to forget about what he just saw if he wanted to protect everyone he knew, specially Hal.]]
* DisappearedDad: Hal's father [[spoiler: who was essentially held hostage by the Ryuugen]]
* DisguisedInDrag: Kai is [[AttractiveBentGender always adorable]]
* GenkiGirl: Mika
* FreakOut: [[spoiler: Witnessing the deaths of his parents resulted in Kai's SplitPersonality]]
* ForgottenChildhoodFriend: [[spoiler: Hal and Kai were former friends who got to know each other during Kai's father's investigation]]
* HeroicBSOD: [[spoiler: Apparently this happened after Kai witnessed his parents' murders and that's why he had to create an alter ego. Also happened at the end when Kai embraced the memories]]
* HugeGuyTinyGirl: Mika and Asakura
* IneffectualLoner: Hal starts off as the classic gruff antisocial police officer until Kai comes along.
* InterserviceRivalry: Various subgroups of the Matori vs MP vs the local police. They actually get along in their own way and are sometimes willing to collaborate but there's a huge rivalry. Occasionally played for drama when they end up hiding information or accidentally interfere in another group's cases leading to a stalled investigation at a crucial moment.
* InterruptedDeclarationOfLove: Played for laughs with Mari failing to confess to Kai
* InterruptedSuicide: Chapter 8 during the High School arc. Also, Hal interrupts [[spoiler: Kai]]'s suicide later.
* IWorkAlone: Hal and, despite emphasizing teamwork, rookie Hiki also tended to do this. It causes problems when they don't have each other's back and are at cross purposes
** It seems genetic as [[spoiler: Ren Kousaka was investigating SWITCH by himself. His death with almost no evidence or leads or anyone to take over helps kill the investigation.]]
* KillerCop: [[spoiler: Hal is suspected of this.]]
* LaserGuidedAmnesia
* LetsGetDangerous
* LoveMakesYouDumb: Mari seems to drop 50 IQ points when she's around Kai.
* TheMatchmaker: Mika wants to get Kai and Mari together
* MasterOfDisguise: The Matori's job is this
* MsFanservice: Kuroda, and sometimes Mari.
* MemoryGambit: Akabane [[spoiler: subverted as he was only pretending to have amnesia to get close to Kai]]
* MoreDeadlyThanTheMale: Ayaka Kuroda
* TheMole: Shingo turns out to be a minor member of Ryuugen. Narita's old partner was also a mole.
* NotQuiteTheRightThing: In hindsight [[spoiler: burning all the evidence of SWITCH was this. If Ren Kousaka has reported the information, the force could have continued the investigation after his death. Instead the main investigator being dead and no information left was a major factor in abandoning the case]].
* ObliviousToLove: Kai towards Mari's crush on him
* PurelyAestheticGlasses: Hal
* RedemptionEqualsDeath: [[spoiler: Hal's father isn't evil but he has been developing drugs for Ryuugen. He dies protecting Kai and Hal]]
* ShaggyDogStory: [[spoiler: Ryuugen's search for SWITCH turns out to be this. They go to great lengths to try to get Kai to remember the location to the formula for SWITCH only to find out that ''there is no location''. See DestroyTheEvidence.]]
* ShipperOnDeck: Hiki encourages Mari's affection for Kai and tries to create opportunities for her to confess to Kai
* SplitPersonality: [[spoiler:Kai]] A perp of the week also developed this to cope with his brother's death.
* SlasherSmile: Kai's other personality sports this. Hal also occasionally when he gets pissed.
* SproutingEars: Miyoshi grows catlike ears and a tail in some panels
* ThatOneCase: SWITCH for much of the force and [[spoiler: connected to that, Kai's parents death for Narita]]. A combination of RightHandVersusLeftHand, corruption and general incompetence turned the case into a bloodbath clusterfuck that went out of control. The investigation had to be stopped and closed after multiple officers were killed.
* TeacherStudentRomance: During the High School arc. Not a good version though as both participants are shown to be pretty messed up people. The student is manipulating to teacher to sell drugs and the teacher is taking advantage of a broken person.
* TechnicalPacifist: Kai. At least until you [[BerserkButton threaten]] [[BewareTheNiceOnes his friends]]
* TraumaInducedAmnesia: Kai [[spoiler: twice]], and [[spoiler: Hal]].
* UndercoverCopReveal: [[spoiler: In the high school case, Takei is actually another undercover cop and not a student]]
* UnwantedHarem: Hal is a ChickMagnet.
* VitriolicBestBuddies: Hal and Kai
* WeDoNotKnowEachOther: Hal and Kai during the MP (school) mission.
* WorthyOpponent: Hiki
* YouAreNotAlone
* YouKilledMyFather: [[spoiler:Kai's other self has the vivid image of Hal's dad killing his father, but we later learn that Hal's father was not the one who killed him.]]
* YouRemindMeOfX: Kai sees [[spoiler: Hal's father when he looks at Hal]] during his berserk moments, thus, feeling the urge to kill him and avenge [[spoiler: his parents.]] His attempts of killing [[spoiler: Hal Kurabayashi]] have always failed.