The mascot of the series, a complete ditz and a loyal worshipper of The Power of Love. Her purpose is... to be just there to help her friends when they're down, but in the process, she makes herself fair game to people who seem to desire her power (or her pureness) for something.
Cross Over: In an official April Fools' Flash Game by Arc Systems Works and Examu, Heart is on a date with Ragna The Bloodedge. She also makes a guest appearance in Bururaji, complete with chibi BlazBlue-style sprite. Come 3 she also starts learning moves seemingly ripped straight off Ragna. It pretty much helps that her and Ragna's voice actors had a history of voicing roles together.
Determinator: Once she makes up her mind on doing something, nothing seems to be able to stop the kid.
Good Is Dumb: As her name would imply, Heart is a very kind, loving and righteous girl, but she's also as sharp as a bag of hammers.
Shotoclone: An unusual variation in that she technically has no projectiles of her own, but relies on an Arcana for them. Most (but not all) Arcanas have projectiles, however, including her default one, so she still qualifies.
Especially since her default arcana has Ryu's projectiles. The serial numbers are barely even filed off.
Heart's aloof best friend (though she won't admit) who has gone studying in England, where she befriended Fiona, whom she unfortunately lost during the separation of the Elemental World. In the process her Arcana would wake in time to save her life, and ever since made a vow to protect her remaining friends, even if from afar.
Charged Attack: Every of her specials. Even the 'Hold Up' and 'Hold Forward' ones. Excepting her special sidestep.
Clothing Damage: If she's defeated by a super move, her tights get ripped in a few places.
Cry Cute: At the end of her story in 3, she broke down in tears upon realizing that all her efforts to gain the sacred stones to turn Fiona back to human was a complete failure, and the rumors behind it could be lies. Thank God there's Heart to cheer her up.
A dog-girl who comes from a legendary ninja clan. She is often very happy, going into battles happily and settling them in a well-intentioned manner. Her route is more joking, however, and it's largely all Played for Laughs.
Chaste Heroine: She's one of the few girls without relationships with other girls bordering on a Homoerotic Subtext, although Clarice, in her fits of jealousy, seems to think something's going on with her and Elsa.
A girl who lost her family (unknowingly, by her own hands), and whose older sister Elfriede's body was placed on a puppet she carries around. She was hired by Mildred to capture Heart. In truth, Elfriede is very much alive but amnesiac as "Zenia Valov".
A British girl whom Saki befriend and was captured by Mildred in what was termed the "Mayfield Incident". She serves her mistress loyally, largely thinking of her as a friend. In any other route in 1, she is the penultimate opponent.
Difficult but Awesome: Her level 3 is a rekka that not only has two types of complicated inputs (in the first and last parts of the chain), but the last part of the chain requires strict timing. That said, it hits for 75% damage when done properly.
A woman with an ambition of merging the human and elemental worlds and gain god-like powers. She is fought at the end of any route, and, unsurprisingly, is the hardest characterto beat in the whole game, given that she has many unblockable attacks.
Amnesiac, no-nonsense Russian Special Forces agent sent to investigate Angelia's rampage in Kanto, and ends up clashing with Kamui. Beneath her tough exterior is a Friend to All Children who is somewhat fond of plushies. She is actually Elfriede Achenbach, Lieselotte's older sister, separated at birth and given a complete memory wash. She learned this from Petra at the end of 3 and returned to Lieselotte for a short time.
A nun who assists Petra during the second Elemental World incident. She joined the Western Europe Spirit Sector after losing her family to a demon attack. She is very straight forward and sometimes too strict on herself.
A nun who assists Petra during the second Elemental World incident. She used to be a noblewoman in the elemental world, but boredom drove her to switch allegiances, and later became an agent of the Western Europe Spirit Sector after a rough encounter with Elsa.
A Japanese-American who fights with a huge robot of her own design named Terry Yodogawa. Despite her comical appearance, she is a genius prodigy who enrolled in MIT's College of Spirit Research at the age of ten. Arcana is Median, the Arcana of Magnetism.
Kansai Regional Accent: Which is pretty impressive when you consider that she's actually an American (though of Japanese descent). And yes, her decidedly non-American accent gets lampshaded occasionally.
Morality Pet: Of sorts, to Kira. Catherine is one of the few people who actually like the arrogant genius girl.
SNK Boss: Tops even Mildred herself in the cheapness department, and when reappearing in 3's score attack mode, has earned the title as being one of the most ridiculous examplles of this in recent memory, possibly even putting most of SNKthemeselves to shame.
Stripperiffic: Let's face it, she only wears a cape, and one square piece of cloth protecting her modesty. Now that's Stripperiffic.
One of her supers lets her ride one of her expanded-sized swords to attack her opponent, reminding many of Jin Kisaragi "surfing" on sword-shaped ice blocks. Her own theme, "White Valkyria", also sounds like Jin's "Lust SIN".
Spell My Name with an S: Official spelling: Scharlachrot. Because it's too complicated, often spelled as "Scharharlot".
Stripperiffic: Yeah, really, just look at that getup she's wearing.
Those Wacky Nazis: Like Weiß, she takes her Arcana move names from prominent Nazi officers. Baldur is not a reference to the benevolent Norse god of light, but to Baldur von Schirach, head of the Hitler Youth. It even has a move called Agosai Schirach (Jawbreaking Schirach).
Yandere: For Weiß. Probably a result of Drexler's brainwashing.
Humongous Mecha: But just like Gottfried and Baldur, it too is but a construct.
The One Guy: Although being an artificial Arcana, he may not count.
Time-Limit Boss: No matter what the game timer is set to, you have 60 seconds to destroy it. If you "win" via timeout, you get the bad ending — at least losing either by timeout or KO still allows you to continue.