[1][2] He was educated at the Mokko Gakko school during the South Seas Mandate era,[3] before attending the Marianas Area Teacher Training College in Guam.

[2] Having had to work part-time to pay for his course,[2] in 1957 he received a fellowship to continue studying at the university,[4] which he graduated from in June 1958.

[2] In the late 1950s he became a member of the Palau Congress,[5] and was a delegate of the islands to the Inter-District Advisory Committee (later the Council of Micronesia), and was its Vice-Chairman from 1960 to 1963.

[8] After Palau separated from the Trust Territory, Ramarui ran for the presidency in the 1980 elections, finishing last in a field of five candidates.

He was appointed Minister of Social Services in October 1982,[10] a role he held until his death in Koror in April 1984.