O_O You missed the s at the end of Harmonic, it's Sigma Harmonics.
Anyway, I liked this game, but it's only out in Japan... I can't get it, however I have DS... T_T
Huhu...
Ermm... I think that was already released a year ago.
http://en.wikipedia.org/wiki/Sigma_Harmonics(OMG, that release date is my twin sisters' bday! The twins are turning a year on that bday...)
So... I hope they get to release this in English D:
Sniff.
Sigma Kurogami... He's... <3 !
Tsukiyumi Neon =D She's... cute! XD
Hmmm, I thought her name is actually Neko... Oh, I might be wrong.