親戚 (shinseki) in Japanese means "relatives" or "extended family." It refers to family members beyond the immediate nuclear family, MailMate.jp
A conjunction meaning "therefore" or "because of that."
The phrase provided appears to be the title of a Japanese media production. "Shinseki no ko" translates to "a relative's child," and "otomari" refers to "staying overnight."
From that day on, Kaito and Akira formed an unbreakable bond, working together to unlock the secrets of the universe and shape a brighter future for all.
Reflective / Family slice-of-life