Code Name: Trapdoor
He read that the spider is also called by the name of “trapdoor spider.” These species resides in a burrow under the ground. Interestingly, they use their own tough abdominal disc to shut the entrance to protect themselves from any foreign threat. So, the spider does not need to make extra efforts to build a door as they themselves have it. Well, what made Li’s heart skip a beat was in the next line.