Plot outline:
“My mom’s working late,” Eri said. “She said to make you comfortable. So… to o tomari da kara — since you’re staying over, I have to show you the rule.” shinseki-no-ko-to-o-tomari-da-kara.html
Thus, “shinseki no ko to o-tomari” evokes : playing video games, staying up late, sharing futons, listening to the ringing of semiautumn insects, and grandparents scolding you in the morning. Plot outline: “My mom’s working late,” Eri said