Rain (Bi), the number of applicants who applied for becoming the "audience" for the idol rebirth project "THE UNIT", in which Rain (Bi) will appear as a mentor has exceeded 30,000. Scheduled to be first broadcasted on October 28th. The first released recording at Ichiyama "KINTEX" near Seoul for a total of 3 days, on September 29th, 30th, and October 1st.