Board Thread:Utaite Talk/@comment-25111959-20140809120319/@comment-5290733-20141106084237

Natsume Hibiki is actually her former name on a different singing site (before she was active on NND), and it carried over somewhat like anon mentioned above, into her NND activities before she stopped using the name. While Hibiki is a real first name, it is also a 'cool singer name' since it means 'to reverberate', so it's unlikely, though possible, that it's her real first name.