Mararike comes from Buhera.
He won the second prize in a literary competition for his manuscript for Zvabuda Pachena. At the time he won the competition he was an editor for Parade.
He did his G.C.E O and A Level privately and studied for a BA General at the University College of Rhodesia. While at the University College of Rhodesia, he was editor of the university newspaper Unicorn.
In February 2018 it was reported that Mararike was being investigated by the Zimbabwe Anti-Corruption Commission (ZACC) in the case involving the awarding of a PhD degree to former first lady Grace Mugabe by the UZ's Faculty of Social Studies Department of Sociology in 2014. Vice Chancellor Levi Nyagura was eventually arrested and tried for abuse of office. Nyagura eventually resigned from the position of Vice Chancellor of the UZ in March 2019.