Okay, get ready for this.
That "girl with the bright blue hair" is actually a guy. XDDDDD Yeah, he does look and sound really girly, and I also thought he was a girl at first, but yes, he's male. It becomes more apparent later on. She's.... I mean, he's... called Kazemaru, btw.
And you like Gouenji? Meh, never really liked him that much. I mean, he's cool with his fire and all that, but... yeah. =/
Um, yes, yes it is.

They get better, though, starting with the third ending.