It means "extremely busy".
눈 = eyes
코 = nose
뜨다 = to open (eyes)
새 = 사이 = time/moment
눈 코 뜰 새 없다 = (to not even have time to open eyes/nose), to be extremely busy
Code Realize: Wintertide Miracles is coming to the Nintendo Switch™ in early 2021 in both Standard and Limited Editions.
The Limited Edition will include a set of five metal pins (of the main cast in their chibi artwork) & an acrylic keychain of Cardia in her winter costume.❄️
보다 has many usages.
to watch (a movie) (영화 봐요.)
to look (at sth) (이거 보세요.)
to read (a book/etc) (책 보고 있어요.)
to look after (a child) (애들 보고 있어요.(babysitting))