A new kind of momcom role-playing adventure!The mastermind behind the Libere Rebellion appears, and that spells trouble for the entire game world! Children everywhere are displaying unnatural independence from their parents, and sudden, mysterious depressions have been cropping up both on land and at sea. The only hope to end these crises: an all-mom idol group with Mamako at the helm! Plus, the identity of the fourth Heavenly King is finally revealed, and it's definitely not the person Masato expected...