He was a Model.
He is the oldest member of the group.
He is a former trainee under YG Entertainment.
Serim performed “Fire” by BTS as a guest at a festival during Middle School.
Park Serim was final winner of YG Entertainment audition from ‘Bundang LJ Dance Academy School’ in 2017.
He has been a trainee since 2017.
He was Jeong Sewoon‘s backup dancer.
His cousin is woo!ah!'s Songyee.