Represents the bright journey that the members have embarked on since their debut. zb1 is the abbreviation of zerobaseone. The official interpretation is that it symbolizes the journey of freedom from 0 to 1, which is a glorious and beautiful beginning. One refers to NO.1, which means to be the first from scratch. Day means daytime, symbolizing light. , represents the bright journey the members have embarked on since their debut.