安楽 あんらく椅子 いす探偵 たんていじゃないです
anrakuisutanteijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 安楽椅子探偵

1. Not an armchair detective.; Not a detective who solves cases from home.

Negative
Polite
Casual Register