The recent threads with Kuro-sensei have been really interesting! It's great to see more of Fay's personality aside from his crack, which is a hard thing to accomplish given his own canon and the sparkliness of Kiseki. I think you're handling it well and fleshing out a good chunk of his personality without making it seem disbelievable or melodramatic.
At first I was a bit "uh wtf" over you apping someone so random like Primera, but she is just so fantastic. I love the similarities with the MKR one, but she's very much her own person... and their thread was hilarious. She's really funny and it's nice to have someone who isn't just ~*~super nice~*~ in Kiseki. I look forward to seeing more from her.
Sakura, Chise, and Chun Hyang are all perfect, as always. I'm sorry I can't think of any suitable crit... aside from the lame "wanna see more" thing, which is always such a cop out.