Full orchestral production slamming way harder than any mobile gacha game has a right to. Epic Seven dropped in 2018 and immediately set a bar for mobile RPG soundtracks that most console games can't touch. "Godkiller's Fate (Straze's Theme)" goes absolutely theatrical, like a final boss walked into a concert hall.
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"The Pub on a Sleepy Afternoon" brings it all the way down to cozy tavern warmth. And "Seven Sweethearts ~Our First Spring~" is so earnestly sweet it could soundtrack a whole romance anime. The character themes carry real personality.
Kawerik's, Solitaria's, Ran's, each one tells you who they are before you read a single line of story. If you play gacha games with the sound off, this is the one that should change your mind.