On 29 December 2018 BiS brought their longest tour to a close at Zepp Tokyo on Odaiba, the final night of the I don't know what will happen TOUR — a 47-prefecture run that had opened in Okinawa the previous April and the first BiS tour staged without founder Pour Lui. Partway through it the group's BiS.LEAGUE system had split the line-up into two rival teams, BiS 1st and BiS 2nd, who until then had played separate afternoon and evening houses. At the finale they shared a single stage instead, each team tearing through the same twelve songs back to back: BiS 2nd opened, BiS 1st closed, and a packed floor carried both through nerve, primal., WHOLE LOTTA LOVE and Against the Pain. Between the sets the second BiS.LEAGUE vote was read out, BiS.LEAGUE was abolished and the two halves were folded back into one group. It was also Nel Nehru's last night with BiS.
