I don't like how the siblings are treating Hanseng, they're always comparing him to Farsei. Treat him as a separate person even if it turns out that they're the same person cause he doesn't have all of Farsei's memories. They have different personalities and likes and dislikes.
Testar - Magical Boys
Listen to the music while reading the chapter for maximum immersion. You can also listen to VTIC.
Idol manhwas' with fanmade ai music:
Surviving as a PD Idol - The Dawn
My Comeback as the Youngest Member - Stardust