* {{Adorkable}}: Characters like J, Boma, and Edmundo can come off this way despite not looking it at first glance.
* CrazyAwesome: ''Clair!'' So crazy and so very, very wonderful.
* CrowningMusicOfAwesome: "Bay Side Slider", J's [[ThemeMusicPowerup Powerup Theme Music]], played on [[EverythingsLouderWithBagpipes bagpipes]] and [[AutobotsRockOut electric guitar]].
** Also "FACE", the opening theme. ''Hey! Boy! Looking for your soul!'' The second ending theme, "Hikari" by Kyoko's voice actress SaekoChiba is pretty nice, too.
* CryForTheDevil: The show invokes this trope with most of its bad guys (except [[spoiler: Noriega]]). Clair is probably the most prominent example, which plays out over the course of the entire series; but you see it with [[spoiler: Shun]] too.
* DesignatedVillain: Toward the end, some characters view Clair as a villain when he obviously isn't in that villainous a position anymore.
* DracoInLeatherPants: Clair and [[spoiler: Shun]]. In Clair's case, the leather pants are literal as well as figurative!
** In a somewhat unusual case, though, the show seems to deliberately encourage it--particularly in Clair's case, as the flashbacks to him and his abusive father start good and early, and he gets more and more heroic/sympathetic things to do as the series goes on.
* EnsembleDarkhorse: Ken Edmundo and Boma.
* EvilIsSexy: Clair and [[spoiler: Shun]] certainly fit the bill.
* FetishFuelStationAttendant: Boma. There's the fact that he's got a ''great'' body (which he doesn't seem to mind showing off), the fact that he's a badass swordsman, the fact that he's got a wolf's head, ''and'' a DarkAndTroubledPast...
* FoeYay: Most of the fanfiction in this teeny tiny fandom is [=DaisukexClair=], even though they normally do not get along. [[spoiler: Except towards the end, where they help each other, but not actually for yaoi reasons.]]
** There's also a little of this between Kyoko and Mitchal, when Kyoko comes to rescue Daisuke, and there are those who ship them.
* FridgeBrilliance: Shun effortlessly beats up Daisuke earlier in the series, but [[spoiler:in the finale Daisuke has the upper hand. Is it heroic resolve? No, it's that Shun still hasn't completely recovered from the sniper bullet that went through his chest not too long ago]]
* FridgeLogic: If Monica can barely manage to earn enough to pay for the trailer she shares with [[LadyDrunk her mother]], how can she afford to keep a donkey? And how is said donkey housetrained if there's no way it can fit into their trailer home?!
* HilariousInHindsight: For fans of the English dub, Clair was one of if not the first villainous roles JohnnyYongBosch ever played, and he ended up doing many of the same things with [[CodeGeass Lelouch]] and especially [[{{Durarara}} Izaya]] that he did with Clair.
* HollywoodHomely: Kyoko gets depressed when trading cards of beautiful girls are being passed around and there isn't one of her. [[spoiler: Turns out there was, but she didn't know about it.]]
* HollywoodPudgy Spends a chapter dieting (read: starving herself) to look good in a bikini to impress her crush at a pool party [[spoiler: turns out he wasn't even there!]] even though she's not fat.
* HoYay: Mitchal & Ian. The fact that [[spoiler: Mitchal blew himself up shortly after Ian's death]], and the fact that they're almost always together is certainly yaoi fodder.
* JerkassWoobie: Clair, Shun
* MagnificentBastard: Lorenzo Leonelli. His son Clair tries to live up to this, but [[SmugSnake falls short.]]
* MemeticMolester: Lorenzo is known to have been physically and emotionally abusive to Clair, and [[{{Fanon}} thought]] to have been [[{{Shotacon}} sexually abusive]] as well. His imposing and creepy nature doesn't help any.
* MemeticSexGod: Clair and Boma.
* {{Moe}}: In a way, Clair. He comes off this way owing to his presentation as a childish [[IllGirl Ill Boy]] and his really crappy childhood. It helps that he's also ''really'', really cute.
* TheScrappy: ''Again'', Lorenzo. Many fans ''hate'' him for the way he treated [[EnsembleDarkhorse Clair]]. Rumie as well, in this case much less justified.
* {{Squick}}: Shows up every so often, to the point it suggests that the characters just don't have very high standards for cleanliness or hygiene. Examples include:
** There's a city in Judoh's AbsurdlySpaciousSewer. Furthermore, the children who live down there apparently think ''nothing'' of playing in the sewer water, nor does Daisuke think anything of jumping in to retrieve his bullet necklace.
** Clair's initiation ritual for becoming Vampire involves him and everyone else present cutting his finger and dripping blood into a big vat of wine, from which everyone in attendance drinks.
** After [[spoiler: Noriega kills Ian, he sends (it's implied) Ian's hand back to Clair, Giovanni, and Mitchal in a box]]. This is already squicky enough, but then Clair [[spoiler: fishes the ring he was wearing out of the box with a horrible squelching noise and sticks it on his own finger--''without cleaning it first!'']]
* SuperlativeDubbing: The English dub of this series is widely considered to be virtually flawless and every bit as enjoyable as the Japanese.
* UnpopularPopularCharacter: Clair
* TheWoobie: Most of the important guys (and one little girl).