兄妹 きょうだい喧嘩 けんかじゃないです
kyōdaikenkajanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 兄妹喧嘩

1. It's not sibling rivalry.; It's not a brother-sister squabble.

Negative
Polite
Casual Register