The story begins when high school student Kazuki Muto is killed one night saving a mysterious girl from a monster, only to wake up in his school dorm, believing it to have been a dream; however, he soon finds out that dream wasn't a dream at all when a giant serpentine monster attacks him and his sister. Tokiko Tsumura, the girl he saved, explains that the monster is a homunculus. Kazuki had been attacked and killed by it when he was rescuing her; however, she, feeling responsible for him, revived him by placing a Kakugane medallion in his chest, serving as a replacement heart.
as Kazuki Muto
as Tokiko Tsumura
as Mahiro Muto
as Ouka Hayasaka
as Shuusui Hayasaka
as Captain Bravo
as Koushaku Chouno
as Hanaka Busujima
as Chitose Tateyama
as Madoka Maruyama
as Deep Blessing Warrior
as Dr. Butterfly
as Shinobu Negoro
as Rintarou Inukai
as Alexandria Powered
as Saori Kawai
as Victoria Powered
as Victor Powered
as Gouta Nakamura
as Shosei Sakaguchi
as Koji Rokumasu
as Captain of the Deep Blessing
as Shinyo Suzuki
as Moon Face
as Sekima Hiwatari
as Genji Ikusabe
as Angel Gozen
as Masashi Daihama
as Chisato Wakamiya
as Hideki Okakura
