Korean spoken, romanized only

Hi, is there a course to recommend that does Korean with only romanized written Korean? The few courses I have tried all require memorization of the Hangul alphabet. I find this too time-consuming and unnecessary. I am looking to quickly learn some of the language orally – as a child would naturally - without getting bogged down in the written form.

Not looking to debate that : )
Is there a course like that on memrise?