1-Mori Madoka-Naru's sensei!! Omg I love her, she taught Naru how to Ghost Hunt and still treats him like a kid! I was laughing in the first chapt just based on her interaction with Naru and Lin. One thing I did find weird was that when she asks Lin if Naru is in, she calls him Naru. I found this odd since she obviously doesnt know Mai or the nick name (it always felt odd to me that Lin called him Naru too but anways)
2- Yasuhara-san is back. Since the case they are working on is attracting alot of media attention, Naru has Yasuhara pretend to be the prez of SPR will Naru is just an investigator.
3- Narumi Kazuo - this floored me the most, its the name Naru gives when everyone is introduced in the mansion. Now since we're all in the boat that Shibuya isnt his real name, Im thinking this either is his real name or atleast very close to it. I think the Narumi part is right tho. Since it would make sense about Mai orginally calling him Naru-chan and him asking where she'd heard it and that Madoka and Lin call him that.
4- Mai's an orphan - honestly this didnt surprise me that much since its almost cliche in alot of anime. But what I was watching for was everyone's reactions. In the panel that shows everyone's reaction Naru isnt shown. A few panels later when Mai is explaining her situation and how working at SPR pays so well Naru is shown from the back. More then likely Naru already knew Mai's situation when he hired her, since back on vol 1 he asks if her school has any problems with her getting a part time job but doesnt ask about her parents. Also Monk-san's reaction to it is kawaii ^_^
5- Lin - we find out Lin is chinese and really hates the japanese, which throws Mai for a loop. Its a great scene with her almost telling him off. Me typing a review would not do it justice, sorry guys
Explains why Lin is the way he is toward Mai but I think they made progress
Makes me really wonder what Naru is then since most of us also believe he's not japanese.
6- Oliver Davis - yes he finally makes an appreance and Monk-san is all happy. But he doesnt do anything which really makes you wonder.
Im gonna have to go back and read the later chapts that involve the house itself again since there is alot of informarion. There's something about a painting and money which totally went over my head
Naru's whole take on this case is also interesting. Mai notices a few times that he's being over cautious and nervous. He's also drawn more somber in alot of scenes. Also and maybe its cuz Madoka is pushing his buttons but he seems a bit more sarcastic then normal. Really makes me want to know whats gonna happen in vol 7 but I have to wait til march T_T