血ちが繋つながる

expression, godan verb (-ru)

be related by blood; be blood-related

Often used in the form 血が繋がっている to describe a blood relationship. Emphasizes biological connection rather than legal or social ties.

• 彼かれとは血ちが繋つながっていないが、本ほん当とうの兄きょう弟だいのように思おもっている。

  We aren't related by blood, but I think of him as a real brother.

• 血ちが繋つながっているからといって、必かならずしも家か族ぞくとしてうまくいくとは限かぎらない。

  Just because you're blood-related doesn't necessarily mean you'll get along as a family.