Here is an exploration of why this track has become a staple in chill-out playlists and what makes the full version a must-listen. The Aesthetic of Roninsong
However, I believe you might be referring to a fanfiction or a creative work inspired by BTS, possibly titled "Magic Shop" by a user named Roninsong. Magic Shop By Roninsong Full Version
If you enjoy the first game, the developer also released , which introduces a more complex "sex-fighting" combat system and deeper character customization. MagicShop2 on Steam Here is an exploration of why this track