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.
The Kakugane, as Tokiko explains, is an alchemical device that, when activated, takes a certain form based on the Kakugane's user, forming a unique Buso Renkin. The Buso Renkin is the only thing that can destroy a homunculus monster. Using this, Kazuki creates his own Buso Renkin (the "Sunlight Heart," a huge lance). Along with Tokiko and her own Buso Renkin (the "Valkyrie Skirt," an execution scythe), Kazuki joins the fight against the homunculi and their master.+ More
Characters & Voice Actors
Victor
Main
Busujima, Hanaka
Supporting
Chouno, Jirou
Supporting
Chouno, Shishaku
Supporting
Daihama, Masashi
Supporting
Deep Blessing's Captain
Supporting
Recommended for you
W: Wish Omake
Special
2m
Big Order (TV)
TV
24m
Clione no Akari
TV
9m
Jungle De Ikou!
OVA
30m
Listeners
TV
24m
Makaryuudo Demon Hunter
OVA
30m
Demon Fighter Kocho
OVA
30m
Beatless Intermission
Special
24m
Bikini Warriors Special
Special
4m
Joker: Marginal City
OVA
36m
Urawa no Usagi-chan
TV
3m
Samurai Shodown The Motion Picture
Special
68m
Wagamama High Spec
TV
3m
Dies irae
TV
23m
Isekai Cheat Magician
TV
23m
Calamity of the Zombie Girl
ONA
79m
