Following his father, Lee Hae In's SNS is Hot Topic in Korea. .

● 19th in the audition program "PRODUCE101" Season 1. Debut Team Missed IOI and worked as an IBI member ● 11th in the audition program “Idol School”. Missed Debut Team fromis_9 but signed contract with the audition sponsoring company ● Self-exposed situation before and after appearing on audition program