A bargain set of fifteen items that allows you to change the academy's BGM to an Omega Labyrinth or Omega Labyrinth Z character song.
Includes:
<Omega Labyrinth Z>
・Invincible GRAVITY (Aina Akemiya & Rio Akanezaki)
・World's Best Present (Aina Akemiya)
・Happy Chain (Nako Mito)
・Re-Do (Saeri Soja)
・Pledge Personified (Marika Hikawa)
・Chase the Longing (Mirei Shirogane)
・I'll Get You Back (Rio Akanezaki)
・Friendship is the Code! (Urara Rurikawa)
・Pai's Wonderland! (Pai)
・Stinging Heart (Chichi)

<Omega Labyrinth>
・Brave Heart (Aina Akemiya)
・A Special Recipe (Nako Mito)
・Azure Persona (Saeri Soja)
・Crimson Labyrinth (Marika Hikawa)
・Precious Time (Mirei Shirogane)