Park released a ballad single titled "애쓰지 마요 (Will Be Fine)" on February 13, 2018.
On April 6, 2018, Park Boram released a digital single titled "말려줘 (Please, Stop Me)", featuring Lil Boi of Geeks.
In October 2018, Park signed with new agency Huayi Brothers.
On May 23, 2018, reports said the two singers recently broke up, and their agencies confirmed, "Seo In Guk and Park Bo Ram broke up about a month ago." Reportedly, Seo In Guk and Park Bo Ram naturally grew apart before they decided to go their separate ways.