On October 21, 2019, it was announced that Eunwoo alongside previous Pristin members, Minkyeung, Yaebin and Gyeongwon, were re-debuting under AlSeulBit Entertainment, which was later renamed to OSR Entertainment, with an additional member, Bada. She was the main vocalist and face of the group. On October 24, the group was revealed to be named Hinapia. They made their debut on November 3, 2019, with single album "New Start". But the group was short lived and announced their disbandment on August 21, 2020, with all the members terminating their contracts.
