(親戚の子と泊まりだから). While it sounds like the title of a cozy slice-of-life anime, it’s currently a major buzzword in the community, often tied to memes and specific TikTok trends. What Does the Name Actually Mean? In Japanese, the title translates roughly to "Because I’m Staying Over with a Relative's Child" Shinseki (親戚): Relatives or extended family. Tomari (泊まり): Staying overnight or a sleepover. The Mystery of the Source Material
Usually depicted as a hardworking but socially isolated individual, their journey involves learning to prioritize another person’s needs over their established routine. The Child: shinseki no ko to wo tomadirakara
" (roughly "Because I’m Staying Over with my Relative’s Child"), here is a concept feature for a romantic comedy or slice-of-life anime/manga: Feature Concept: Shinseki no Ko to o Tomari da kara (親戚の子と泊まりだから)