Isshoukenmei Inoru (一生懸命祈る) is a musical production based on the American book, Pray Hard. It tells the story of a girl named Ameila, who finds it hard to believe in anything anymore after the death of her father. The stage play ran from August 25 to September 2, 2013.
- Saburo Mami (三郎マミ) as Amelia
- Ikuta Erina (生田衣梨奈) as Amelia's Mother
- Atsushi Ren (敦仁) as Brother Mustard Seed
- Oda Sakura (小田 さくら) as Oshun
- Fukusaku Masami (フカサク正美) as Oshun's Grandmother
- Nachi (那智) as Father's Voice