expression
when it comes to ...; as for ...
Used to introduce a topic, often with a nuance of criticism, complaint, or strong emphasis. Followed by a statement about the topic.
彼ときたら、いつも遅刻ばかりだ。
When it comes to him, he's always late.
うちの猫ときたら、一日中寝てばかりいる。
As for our cat, it does nothing but sleep all day.