Jiu confirming the answer for the mystery code since it was already solved by InSomnia a few hours ago (Scream Era)
/r/dreamcatcher: Dreamcatcher - λλ¦ΌμΊμ³ - Subreddit for Dreamcatcher, a K-pop girl group under Dreamcatcher Company. A home for Dreamcatcher news, info, photos, videos, GIFs, discussions and more! - July 4, 2021 - 22:53