The First Step: Treasure Effect is the debut studio album by South Korean boy band Treasure. It was released on January 11, 2021, through YG Entertainment. The album was released for pre-order on December 29, 2020. A music video for the album's "My Treasure" was released alongside the album. The digital version of the album contains 10 tracks, while the CD version contains 12 tracks. The physical album comes in three versions: Blue, Green and Orange. The album is primarily a K-pop record that combines hip hop, dance, dance-pop, pop, rap and ballad elements. The First Step: Treasure Effect is the fourth and final installment of The First Step series, following the group's single albums The First Step: Chapter One, The First Step: Chapter Two and The First Step: Chapter Three, all released in 2020 - all 3 single albums' songs appear on The First Step: Treasure Effect, along with the group's pre-debut song "Going Crazy".

The Second Step: Chapter One is the first extended play (EP) by South Korean boy band Treasure. The EP was released by YG Entertainment on February 15, 2022. The EP is also the last album to feature Yedam and Mashiho as they left the group in November 2022.