Shinseki+no+ko+to+o+tomari+dakara+de+na+warga+exclusive - Fixed

親戚 (shinseki) in Japanese means "relatives" or "extended family." It refers to family members beyond the immediate nuclear family, MailMate.jp What is shinseki? - MailMate

Given the combination of Japanese terms ("shinseki no ko," "tomari," "dakara") and the English word "exclusive," the most probable explanation is that this is the title of a niche —likely a light novel, web manga, visual novel, or an adult game. This type of title, which is often a long, descriptive sentence, is a well-known trope in Japanese otaku subculture. shinseki+no+ko+to+o+tomari+dakara+de+na+warga+exclusive