Edit | Respond

Possible KA (Based on who's credited in the gengashuu): 堀川耕一, 小柏奈弓, 西谷衆平, かつお, 徳田靖, 樋口香里
I think Nao drinking and yelling is most likely 小柏奈弓, the handwriting is very similar to their corrections on other episodes and on Mob II

edit: tagging, but best to note that the reading of their given name isn't confirmed