JLPT N1 Grammar
〜ないではすまない (nai de wa sumanai)
〜ないではすまない (nai de wa sumanai) “Must; cannot avoid doing; will inevitably have to...” This expression is used to express that, given the social circumstances, moral obligations, or the seriousness of a situation, one cannot finish or resolve a matter without taking a specific action. It implies that simply doing nothing