管理 かんり責任 せきにんじゃないです
kanrisekininjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 管理責任

1. It's not management's responsibility.; It's not my responsibility. ; (Depending on context, "management" could be implied as "me")

Negative
Polite
Casual Register