Henshū mo gyōmu mo chitcha na isshitsu ni gochamaze.The editing and business was done in one single very messy room.

nikai kara megusuritrying to do an impossible task (literally, “(taking) eye medicine from the second floor”)

Nazenara furui kara da.That is because it's old.

Kyō wa ore ichi-nichi heya ni ita kara sa ima kimi no koto kiita n da Yoroshiku Yan Hai daI was in my room all day, so I only heard about you just now. I’m Yang Hai, nice to meet you.