Well, taking account of WaveMaster's page I'm doubting.
I extracted the information from the game's credits
http://park21.wakwak.com/~suka/sega/...f3_md/ps4.html
then I romanized the name.
中垣 (Nakagaki) I hope that all agree with this. The problem resides in his name, 斉己, which I have only seen romanized as Yoshimi but if Gigablah says that 斉己 can too be Masaki then... go with Masaki.