The characters from the game 'Elsword' have returned with a more dazzling appearance after about four and a half years. "EliOS Idol Comeback Project, Elstar 2" presents various stages for the fans who have waited, including comeback song stages, follow-up song stages, and special stages, with new members who joined after Season 1. 'Trinity Ace' consists of 'Elsword', 'Chung', 'Add', and 'Noah'. 'Mega Cake' consists of 'Aisha', 'Eve', 'Lu', and 'Laby'. 'MAZE' consists of 'Raven', 'Ciel', and 'Ain'. And 'Alter Crown' consists of 'Rena', 'Ara', 'Elisis', 'Rose', and 'Lutia'. Sixteen shining stars, a constellation united, unfolds a fantastic dream stage once more.