Three SMROOKIES get a mysterious invitation and visit NEO CITY. For the SMROOKIES, SHOTARO and SUNGCHAN prepare a thorough tour about NCT and NEO CITY. They give a lecture on the chronicle of NCT and do cover dances of NCT’s songs. Meanwhile, the SMROOKIES meet the residents of NEO CITY. Who are the residents that will welcome the SMROOKIES?