Osaso is an acrynom for (oneuldo saranghae sojunghae 오늘도 사랑해 소중해) which means : Today too I love you and I treasure you. A line created by KANG KINO from PENTAGON to express his love to UNIVERSE, Pentagon's fandom, which after that started to be used by all of PENTAGON members.
by Uni4tagonie December 27, 2022