あと始末 しまつじゃありませんでした
atoshimatsujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 後始末

1. It wasn't a matter of dealing with the aftermath.; It wasn't a problem to resolve later.; It wasn't something to worry about afterward.

Past/Perfective
Negative
Polite
Terminal Form