The Black Dweller of the Kitchen...

Gasp...!! How terrifying...!! This is what works against those black dwellers! Its name is! "Fumakilla Cockroach One-Push Pro"!! Push it into the gaps and spaces where the black dwellers pop out, and it lasts for a month!! The source of its effectiveness is me! I'm a messy-room-loving,限界汚嬢様 (Genkai Ojousama - extreme lady of the house), but no black dwellers appear!! By the way, cardboard boxes tend to become habitats for black dwellers, so it's best to dispose of them as you go!

アース製薬様のあらゆる対策グッズを駆使することをおすすめいたしますわァ〜〜〜〜〜！ ちゃんと効き目ありましてよ。 ソースはわたくしですわ。 調べてみてはいかがでしょう

Then, I'll offer a different perspective. First, identify the entry points. Water access points, near drain pipes. Ventilation fans. Door gaps. A surprisingly overlooked spot is gaps in the walls. If there's a gap wide enough for thick paper to slide through, 'Initial G' can enter with ease. Be careful with door gaps too. If light from outside can enter, it can be an entry point. Based on experience, it's highly likely they're entering from a location near where you've seen them. Afterward, thoroughly block the entry points! Use masking tape or gap tape to seal them completely. For places you can't seal, regularly spray an 'Insect Repellent Spray' (for G) to deter them. I focus more on preventing entry than on extermination! I hope this is helpful.

In addition to other ladies' recommendations, I think it would be good to place a standing type near the entrance (outside~!! Also, they absolutely love things like onion skins, so leaving those around will make them come more easily! Be careful with cardboard boxes and onions~!! Earth Chemical products are truly trustworthy! I pray for good results~!!!!!

That is a grave situation indeed. My own mansion is also under threat, you see. Cutting off entry points is certainly very important. Also, I have reptiles in my mansion, so I can't freely use insecticides, which has become a hindrance. Therefore, although it's not a pretty sight, 'cockroach traps' have been the most effective in my experience. However, I must warn you, the appearance will be quite unsightly, so please be prepared.

Mr. G is really scary!! I also keep plenty of Earth Corporation products at home! By the way, centipedes sometimes appear too, and they have quite a presence (lol) They aren't bad bugs, but their appearance...

We are Black Cap... I looked it up and it was the Earth Chemical product everyone was talking about~!