Garo: Makai Senki (牙狼〈GARO〉～MAKAISENKI～?, [Note 1]) is a Japanese tokusatsu television series serving as a sequel toGaro, airing on TV Tokyo. The catchphrase for the series is "The knight's oath, shines in gold" (騎士の誓い、金色に輝け。 Kishi no Chikai, Konjiki ni Kagayake.?).
Ryosei Konishi, Mika Hijii, Ray Fujita, Yasue Sato, Hironobu Kageyama, Ai Orikasa, and Yukijirō Hotaru reprise their roles from the original television series. Shouma Yamamoto reprises his role from the Byakuya no Maju special. Mary Matsuyama and Masahiro Kuranuki reprise their roles from the Red Requiem film. Newcomers to the series include Ozuno Nakamura and Yuriko Hishimi.

Plot[edit]
Main articles: Realm of Garo and List of Garo characters
Following on from Garo and Garo: Red Requiem Makai Senki follows the continuing adventures of Kouga Saezima as he is promoted to being the Makai Knight to the Senate and how he tries to avoid an untimely demise after being marked by the Seal of Destruction by the series antagonist. Unlike the previous series, several episodes focus solely on Rei.
Subplots to the series concern Kouga's slow-boiling romantic relationship with Kaoru who is trying to get her first picture book published while Kouga tries to keep his seal a secret from her, Rei/Zero having also been marked with the seal and a possible resurgence in his friendly rivalry with Kouga, and the identity of the series antagonist, a red-masked Makai Priest who "seals" Kouga and Rei as part of his effort to destroy all of the Makai Knights and make the Priests dominant again.
Also introduced is the Makai Senate, which heads the Makai order and therefore over-rules the Watchdogs shown in the previous series. The senate includes Grace, a high ranking Makai Priestess and gives out orders in place of the Watchdogs and Kouga's new partner Reo Fudō, a kind hearted Makai Priest and creator of the Gouryu previously seen in the film Red Requiem. Reo is also seen to be troubled by memories of a woman (known as Mio) from his past, whom Kaoru reminds him of.