このころ

Meanings

1

at that time; in those days; then

usually written using kana alone

Refers to a past period already mentioned or understood from context. Often used in narrative or reminiscing.

See also: その頃

この頃ころはまだ子こ供どもだったので、何なにもわからなかった。
At that time I was still a child, so I didn't understand anything.
この頃ころ、彼かれは毎まい日にち遅おそくまで働はたらいていた。
In those days, he worked late every day.