Roach and not cockroach, there is a hint in the book
非常感谢我的翻译让我用面团捉蟑螂，这让我很纳闷。直到我用面团钓到鱼，我才意识到这是一个很大的误会
But I am still very grateful to the author for his great reply and look forward to the next update.
