The phrase " Shinseki no ko to otomari dakara " (often translated as "Because I’m staying over with my relative's child") refers to a specific adult-themed Japanese manga and animation.
If you notice red flags, speak gently with your child using open-ended questions:
“Did anything happen that made you feel uncomfortable?”
“Did anyone ask you to keep a secret?”
You may have been trying to ask: “What happens when you stay over at a relative’s child’s place?” or “An article about staying over with a cousin.”
Could you please clarify the exact title or genre you are looking for?
Given the potential for "shinseki no ko" to relate to "Shinsengumi" (a historical special police force in Japan during the late Edo period, often featured in manga and anime), and assuming a typo or confusion with terms, a speculative and more directed text could be:
