Kim was born in Leningrad, Russian SFSR, Soviet Union in southern Saint Petersburg, Russia.

In Marina moved to Moscow, transferred to the Moscow State Institute of International Relations (University) of the Ministry of Foreign Affairs of the Russian Federation to the Faculty of International Relations, received a diploma in North American Studies.

She graduated from TV presenter courses at the Institute for Advanced Training of Radio and Television Workers.

In 2004, became the leading program "Markets" on the business channel "RBK TV", where she specialized in the analysis of Asian stock indices.

[5] In 2014, she began hosting the television programme Good Morning (Russian: Доброе утро) on Channel One.

[9] She continued to act as a story writer, working during the visit of North Korean leader Kim Jong Un to Vladivostok in April 2019.