それはそうとして
Meanings
1
anyway; by the way; incidentally; to change the subject
usually written using kana alone
A set phrase used to shift the topic or return to a main point after a digression. Similar to それはそうと, but slightly more formal or emphatic.
See also: それはそうと
Anyway, are you ready for tomorrow's meeting?
By the way, how have you been lately?