SM Ent announces the release date for Red Velvet - Irene & Seulgi's 1st Mini Album 'Monster' is postponed until mid-July
— The Seoul Story (@theseoulstory) May 29, 2020
They said further work was needed to improve the musical perfection of the album
Source: https://t.co/MLLaBer9C7 pic.twitter.com/Wc14E4kS66
source: theseoulstory via naver