Abyss Horizon - I_07 Boss Battle

Abyss Horizon (アビス・ホライズン)
Publisher: MorningTec Japan

iOS: https://itunes.apple.com/jp/app/アビス-ホライズン/id1340029569?mt=8

Android: https://play.google.com/store/apps/details?id=com.morningtec.abyss&hl=en_US