Oath of Hibernation S01 E03

Haruka Ayase (as Balsa) Mizuki Itagaki (as Chagum) Masahiro Higashide (as Tanda) Fumino Kimura (as Ninokisaki) Kento Hayashi (as Shuga) Mitsuru Fukikoshi (as Gakai) Reiko Takashima (as Torogai) Tatsuya Fujiwara (as The Emperor) Koji Kikkawa (as Jiguro)

based on novel or book fantasy japanese drama otherworld