My Idol System: An Idol, But Also A Savior Novel

A devastating explosion reduces Joshua's laboratory to ash, swallowing him beneath mountains of debris. His eyes open in a foreign body, within an unfamiliar world. [Ding! Idol System activated! Execute your missions or watch this world crumble to ruin!] Joshua's hopeful query: "Do I have a choice?" The system's merciless answer: "Of course not."