 The rest of Bis' "I Don't Know What Will Happen Tour" was held with five members until the new members debuted in June.In November 2018, Bis released "Against the Pain", their second single under the Bis.League system.Bis 1st (Go Zeela, Toriaez Hana, Aya Eightprince, and Pan Lunaleafy) released it in the form of a collector's box edition limited to 1,000 copies, while Bis 2nd released it as a single CD.