Victim of AJ case 3.
 

Personality: A stoic, honest man deeply moved by Lamiroir's music.

Misc Facts: He's the one that came up with the title "Siren of the Ballad."

Friends and Family: Unknown.

Name Origin:
English: Taken from his Japanese name.

Japanese: Quite literally, romaine lettuce. Takumi admits there's no greater reasoning behind it other than he happened to see it listed in a recipe.

Background: Three months ago, Romein became Lamiroir's manager/bodyguard.

Witness of AJ case 3.

Personality: Lamiroir is soft spoken and very modest when it comes to her talent.

Misc Facts: Her music is described as "Sight-Seeing Musique" - since she's traveled so far and has seen so many places, her singing makes you feel like you're seeing the world when you hear it. She is known as the Siren of the Ballad.

The design on her face mask is a hiragana "ra."

Lamiroir is from the Republic of Borginia, a made up country in northern Europe.

Friends and Family: Unknown. She lives now with the orphan, Machi, and thinks of him as a son.

Name Origin: According to the game, "Lamiroir" comes from the a word in Borginia meaning "goddess of song." It's actually meant to come from "mirror."

Background: Before becoming an international sensation Lamiroir used to sing in a small restaurant in the Republic of Borginia. It's there that she was discovered and propelled to international stardom.

Defendant of AJ case 3.
 

Personality: Machi is shy around strangers, and doesn't speak much (mostly because he doesn't speak any foreign languages). He's very devoted to Lamiroir.

Misc Facts: Machi is blind.

In the script Machi was originally going to be a girl, but was changed to a boy along the way.

His pendant is meant to be the shape of a hiragana "ma".

Friends and Family: He's an orphan now in Lamiroir's care.

Name Origin:
English: Some speculate it comes from the phrase "much to buy" though I'm fairly sure it's meant to be pronounced with a hard C, like his Japanese name, so I'm not entirely sure if this is accurate. (-Silverwind)

Japanese: Unknown.

French: May come from the French cache-cache for "hide and seek." (thanks TTH)

Background: Machi knew Lamiroir when she still lived in Borginia, and accompanied her singing on the piano.

Witness of AJ case 3.
 

Personality: Daryan is usually very collected and serious, but when it comes to Klavier harping on him, the band, or anyone getting on his nerves, he turns into a jerk pretty quickly, and is quick to scorn others.

Misc Facts: Daryan specializes in international cases.

Daryan's overall design was meant to be shark-like.

Friends and Family: Member of The Gavinners rock band, and a close friend of Klavier especially.

Name Origin:
English: Daryan sounds a lot like his Japanese name, Daian. Crescend probably comes from the musical term "crescendo." May also be a reference to his Japanese name, which includes the kanji for "moon" (-Junwei)

Japanese: Comes from mayu-suki, meaning, "likes cocoon."

Takumi says he picked Daian's name from a "List of Cool Names" that he had prepared previously when trying to come up with names for prosecutors.

Background: Daryan has been a member of The Gavinners ever since it started, and though he and Klavier don't always work together directly on cases, they get along well.