Watching TV past midnight, peripheral vision caught a small dark blob heading towards the crack under the kitchen door.
Instinctively knew what it was, though it's been ages since the last sighting.
Gokijet's oily spray caught it behind a bin, but left a greasy mess to clear up after removing the carcass😓.
Got a freezing cockroach killer[1] spray can today. Was surprised the active ingredient is peppermint oil! [2]
Ref.1: https://www.earth.jp/en/products/naturas-gokibyousatsu-200/index.html
Ref.2: https://cockroachfacts.com/peppermint-oil-for-roaches/