Karasu Tengu Kabuto: Ougon no Me no Kemono  

Kabuto, Raven Tengu Kabuto: The Golden-Eyed Beast, 鴉天狗カブト 黄金の目のケモノ, Kabuto the Golden Eye Monster

In an alternate version of feudal Japan, there exists a tengu named Kabuto, whose mission is to safeguard a princess from the perilous fortress that houses monstrous mechas.