Used to indicate that something definitely happens as a result or a consequence of a certain action.
The Verb ないではおかない grammar point is used to express that something always follows or is a direct result of an action. This also implies that the speaker might not want the result to happen, but it's inevitable or likely to occur. It can be translated to English as 'would not fail to' or 'would not be complete without'. It's formed by attaching ないではおかない to the negative form of the verb.