It appears the romanization you used ( shinseki nokotowo ) contains a small error in the Japanese particle. The correct particle is のことを (no koto wo), which is often used to signify "about/regarding" something. However, the widely accepted title for this specific media is missing the を and instead uses the connective と (to), meaning "with."
Here is a detailed article explaining what this phrase refers to, its origins, and what you should know about it. shinseki nokotowo tomari dakara animation link
"Because I am staying overnight at my relative's place." or "Because a relative is staying over." Why Is It Trending? It appears the romanization you used ( shinseki
A popular sub-genre of anime memes involves showing the initial, clean seconds of an adult animation before cutting abruptly to a completely unrelated humorous video (such as a gaming fail, a historical documentary segment, or an intense anime battle scene). The comments sections of these "bait" videos are invariably flooded with users asking for the "sauce" or direct animation links. 3. Algorithmic Title Obfuscation "Because I am staying overnight at my relative's place
親戚のことを泊まりだから アニメ リンク