User blog comment:Imouto-tan/Izaya Malphas/@comment-4867780-20160915212523/@comment-26362471-20160919003450

I've been redoing his base concept for a long time, so you could say that he's been through multiple phases.

Indeed, think of them as sexy bodyguards that are also used for his sexual pleasure. They only listen to him and will go through great lengths to protect him from danger. He is indeed just as smart as his father, but lacks is evil genius.

Izaya just made these specific Hibiki Units. Rikou Liladan made the whole series of Hibikis. His gynoids are apart of the general Hibiki series, but unlike other Hibiki Units they aren't under the government's watchful eye.

He does love them just as much as he loves his little sister and will kill to protect them with his life.