Kairiru is one of three Kairiru languages spoken mainly on Kairiru and Mushu islands and in several coastal villages on the mainland between Cape Karawop and Cape Samein near Wewak in East Sepik Province of Papua New Guinea.
One remarkable feature of the pronoun system of Kairiru is that it appears to have lost the distinction between first-person inclusive and exclusive pronouns throughout its affix paradigms, but then recreated inclusive forms in its independent pronouns by combining first-person and second-person forms along the lines of Tok Pisin yumi (< yu + mi).
The inclusive-exclusive distinction is almost universal among Austronesian languages but generally lacking in Papuan languages.